Fn key reordering (#791)

app/src/main/java/io/github/sspanak/tt9/preferences/PreferencesActivity.java

@@ -24,6 +24,7 @@ import io.github.sspanak.tt9.preferences.screens.UsageStatsScreen;
 import io.github.sspanak.tt9.preferences.screens.appearance.AppearanceScreen;
 import io.github.sspanak.tt9.preferences.screens.debug.DebugScreen;
 import io.github.sspanak.tt9.preferences.screens.deleteWords.DeleteWordsScreen;
+import io.github.sspanak.tt9.preferences.screens.fnKeyOrder.FnKeyOrderScreen;
 import io.github.sspanak.tt9.preferences.screens.hotkeys.HotkeysScreen;
 import io.github.sspanak.tt9.preferences.screens.keypad.KeyPadScreen;
 import io.github.sspanak.tt9.preferences.screens.languageSelection.LanguageSelectionScreen;
@@ -159,6 +160,7 @@ public class PreferencesActivity extends ActivityWithNavigation implements Prefe
 			case AppearanceScreen.NAME -> new AppearanceScreen(this);
 			case DebugScreen.NAME -> new DebugScreen(this);
 			case DeleteWordsScreen.NAME -> new DeleteWordsScreen(this);
+			case FnKeyOrderScreen.NAME -> new FnKeyOrderScreen(this);
 			case HotkeysScreen.NAME -> new HotkeysScreen(this);
 			case KeyPadScreen.NAME -> new KeyPadScreen(this);
 			case LanguagesScreen.NAME -> new LanguagesScreen(this);

app/src/main/java/io/github/sspanak/tt9/preferences/custom/PreferencePlainText.java

@@ -8,7 +8,7 @@ import androidx.annotation.Nullable;
 
 import io.github.sspanak.tt9.R;
 
-final public class PreferencePlainText extends ScreenPreference {
+public class PreferencePlainText extends ScreenPreference {
 	public PreferencePlainText(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); }
 	public PreferencePlainText(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
 	public PreferencePlainText(@NonNull Context context, @Nullable AttributeSet attrs) { super(context, attrs); }

app/src/main/java/io/github/sspanak/tt9/preferences/items/SearchPreference.java

@@ -14,17 +14,17 @@ import io.github.sspanak.tt9.languages.LanguageCollection;
 import io.github.sspanak.tt9.languages.LanguageKind;
 import io.github.sspanak.tt9.util.sys.DeviceInfo;
 
-abstract public class ItemSearch extends ItemTextInput {
+abstract public class SearchPreference extends TextInputPreference {
-	public ItemSearch(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+	public SearchPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
 		super(context, attrs, defStyleAttr, defStyleRes);
 	}
-	public ItemSearch(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+	public SearchPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
 		super(context, attrs, defStyleAttr);
 	}
-	public ItemSearch(@NonNull Context context, @Nullable AttributeSet attrs) {
+	public SearchPreference(@NonNull Context context, @Nullable AttributeSet attrs) {
 		super(context, attrs);
 	}
-	public ItemSearch(@NonNull Context context) {
+	public SearchPreference(@NonNull Context context) {
 		super(context);
 	}
 

app/src/main/java/io/github/sspanak/tt9/preferences/items/TextInputPreference.java

@@ -18,22 +18,22 @@ import io.github.sspanak.tt9.preferences.settings.SettingsStore;
 import io.github.sspanak.tt9.util.colors.AccentSystemColor;
 import io.github.sspanak.tt9.util.colors.ErrorSystemColor;
 
-abstract public class ItemTextInput extends ScreenPreference {
+abstract public class TextInputPreference extends ScreenPreference {
 	@NonNull private final Handler listener = new Handler(Looper.getMainLooper());
 	protected EditText textField;
 	@NonNull protected String text = "";
 
 
-	public ItemTextInput(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+	public TextInputPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
 		super(context, attrs, defStyleAttr, defStyleRes);
 	}
-	public ItemTextInput(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+	public TextInputPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
 		super(context, attrs, defStyleAttr);
 	}
-	public ItemTextInput(@NonNull Context context, @Nullable AttributeSet attrs) {
+	public TextInputPreference(@NonNull Context context, @Nullable AttributeSet attrs) {
 		super(context, attrs);
 	}
-	public ItemTextInput(@NonNull Context context) {
+	public TextInputPreference(@NonNull Context context) {
 		super(context);
 	}
 
@@ -71,6 +71,11 @@ abstract public class ItemTextInput extends ScreenPreference {
 	}
 
 
+	public CharSequence getText() {
+		return text;
+	}
+
+
 	protected void setText(CharSequence newText) {
 		if (textField != null && newText != null && !text.equals(newText.toString())) {
 			textField.setText(newText);

app/src/main/java/io/github/sspanak/tt9/preferences/screens/appearance/AppearanceScreen.java

@@ -36,9 +36,11 @@ public class AppearanceScreen extends BaseScreenFragment {
 		ItemNumpadFnKeyScale fnKeyWidth = new ItemNumpadFnKeyScale(findPreference(ItemNumpadFnKeyScale.NAME), activity.getSettings());
 		ItemNumpadKeyFontSize numpadKeyFontSize = new ItemNumpadKeyFontSize(findPreference(ItemNumpadKeyFontSize.NAME), activity.getSettings());
 		ItemSuggestionFontSize suggestionFontSize = new ItemSuggestionFontSize(findPreference(ItemSuggestionFontSize.NAME), activity.getSettings());
+		ItemFnKeyOrder fnKeyOrder = new ItemFnKeyOrder(activity.getSettings(), findPreference(ItemFnKeyOrder.NAME));
 
 		ItemSelectLayoutType selectLayout = new ItemSelectLayoutType(findPreference(ItemSelectLayoutType.NAME), activity)
 			.addOnChangeItem(alignment)
+			.addOnChangeItem(fnKeyOrder)
 			.addOnChangeItem(fnKeyWidth)
 			.addOnChangeItem(keyboardWidth)
 			.addOnChangeItem(numpadKeyFontSize)

app/src/main/java/io/github/sspanak/tt9/preferences/screens/appearance/ItemFnKeyOrder.java

@@ -0,0 +1,24 @@
+package io.github.sspanak.tt9.preferences.screens.appearance;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.preferences.items.ItemClickable;
+import io.github.sspanak.tt9.preferences.settings.SettingsStore;
+import io.github.sspanak.tt9.util.sys.DeviceInfo;
+
+public class ItemFnKeyOrder extends ItemClickable implements ItemLayoutChangeReactive {
+	public static final String NAME = "screen_fn_key_order";
+	public ItemFnKeyOrder(SettingsStore settings, Preference item) {
+		super(item);
+		onLayoutChange(settings.getMainViewLayout());
+	}
+
+	@Override protected boolean onClick(Preference p) { return true; }
+
+	public void onLayoutChange(int mainViewLayout) {
+		if (item != null) {
+			item.setVisible(mainViewLayout == SettingsStore.LAYOUT_NUMPAD && !DeviceInfo.noTouchScreen(item.getContext()));
+			item.setIconSpaceReserved(false);
+		}
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/deleteWords/PreferenceSearchWords.java

@@ -9,12 +9,12 @@ import androidx.annotation.Nullable;
 import java.util.ArrayList;
 
 import io.github.sspanak.tt9.db.DataStore;
-import io.github.sspanak.tt9.preferences.items.ItemSearch;
+import io.github.sspanak.tt9.preferences.items.SearchPreference;
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
 import io.github.sspanak.tt9.util.ConsumerCompat;
 import io.github.sspanak.tt9.util.Logger;
 
-public class PreferenceSearchWords extends ItemSearch {
+public class PreferenceSearchWords extends SearchPreference {
 	public static final String NAME = "dictionary_delete_words_search";
 	private static final String LOG_TAG = PreferenceSearchWords.class.getSimpleName();
 

app/src/main/java/io/github/sspanak/tt9/preferences/screens/fnKeyOrder/FnKeyOrderLegendPreference.java

@@ -0,0 +1,36 @@
+package io.github.sspanak.tt9.preferences.screens.fnKeyOrder;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.preferences.custom.PreferencePlainText;
+
+public class FnKeyOrderLegendPreference extends PreferencePlainText {
+	public FnKeyOrderLegendPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); populate(); }
+	public FnKeyOrderLegendPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); populate(); }
+	public FnKeyOrderLegendPreference(@NonNull Context context, @Nullable AttributeSet attrs) { super(context, attrs); populate(); }
+	public FnKeyOrderLegendPreference(@NonNull Context context) { super(context); populate(); }
+
+	private void populate() {
+		StringBuilder content = new StringBuilder(__(R.string.fn_key_order_legend))
+			.append("\n1 = ").append(__(R.string.function_show_settings))
+			.append("\n2 = ").append(__(R.string.function_add_word))
+			.append("\n3 = ").append(__(R.string.virtual_key_shift))
+			.append("\n4 = ").append(__(R.string.function_next_mode))
+			.append("\n5 = ").append(__(R.string.function_backspace))
+			.append("\n6 = ").append(__(R.string.function_filter_suggestions))
+			.append("\n7 = ").append(__(R.string.function_edit_text)).append(" / ").append(__(R.string.function_voice_input))
+			.append("\n8 = OK\n\n")
+			.append(__(R.string.fn_key_order_preview_tip));
+
+		setSummary(content);
+	}
+
+	private String __(int resourceId) {
+		return getContext().getString(resourceId);
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/fnKeyOrder/FnKeyOrderScreen.java

@@ -0,0 +1,58 @@
+package io.github.sspanak.tt9.preferences.screens.fnKeyOrder;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.preferences.PreferencesActivity;
+import io.github.sspanak.tt9.preferences.screens.BaseScreenFragment;
+
+public class FnKeyOrderScreen extends BaseScreenFragment {
+	final public static String NAME = "FnKeyOrder";
+
+	private LeftFnOrderPreference left;
+	private RightFnOrderPreference right;
+
+	public FnKeyOrderScreen() { init(); }
+	public FnKeyOrderScreen(PreferencesActivity activity) { init(activity); }
+
+	@Override public String getName() { return NAME; }
+	@Override protected int getTitle() { return R.string.pref_category_fn_key_order; }
+	@Override protected int getXml() { return R.xml.prefs_screen_fn_key_order; }
+
+	@Override
+	protected void onCreate() {
+		createTextFields();
+		(new ItemResetFnKeyOrder(findPreference(ItemResetFnKeyOrder.NAME), left, right)).enableClickHandler();
+		resetFontSize(true);
+	}
+
+	private void createTextFields() {
+		left = findPreference(LeftFnOrderPreference.NAME);
+		right = findPreference(RightFnOrderPreference.NAME);
+		if (left != null && right != null) {
+			left.setTextChangeHandler(this::onTextChange);
+			right.setTextChangeHandler(this::onTextChange);
+		}
+	}
+
+	private void onTextChange() {
+		if (left == null || right == null || activity == null) {
+			return;
+		}
+
+		FnKeyOrderValidator validator = activity.getSettings().setFnKeyOrder(left.getText().toString(), right.getText().toString());
+		left.setError("");
+		right.setError("");
+
+		if (validator.getError() == null) {
+			return;
+		}
+
+		if (validator.getErrorSide() == FnKeyOrderValidator.ERROR_SIDE_LEFT) {
+			left.setError(getString(validator.getError()));
+		} else if (validator.getErrorSide() == FnKeyOrderValidator.ERROR_SIDE_RIGHT) {
+			right.setError(getString(validator.getError()));
+		} else if (validator.getErrorSide() == FnKeyOrderValidator.ERROR_SIDE_BOTH) {
+			left.setError(getString(validator.getError()));
+			right.setError(getString(validator.getError()));
+		}
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/fnKeyOrder/FnKeyOrderValidator.java

@@ -0,0 +1,107 @@
+package io.github.sspanak.tt9.preferences.screens.fnKeyOrder;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import io.github.sspanak.tt9.R;
+
+public class FnKeyOrderValidator {
+	public final static int ERROR_SIDE_LEFT = -1;
+	public final static int ERROR_SIDE_RIGHT = 1;
+	public final static int ERROR_SIDE_BOTH = 0;
+
+	private Integer error;
+	private int errorSide = ERROR_SIDE_BOTH;
+
+	private final String left;
+	private final String right;
+
+
+	public FnKeyOrderValidator(String left, String right) {
+		this.left = left;
+		this.right = right;
+	}
+
+
+	public Integer getError() {
+		return error;
+	}
+
+
+	public int getErrorSide() {
+		return errorSide;
+	}
+
+
+	public boolean validate() {
+		error = null;
+		errorSide = ERROR_SIDE_BOTH;
+
+		return
+			validateLength(left, ERROR_SIDE_LEFT) && validateLength(right, ERROR_SIDE_RIGHT)
+			&& validateDigits(left, ERROR_SIDE_LEFT) && validateDigits(right, ERROR_SIDE_RIGHT)
+			&& validateNoRepeat(left, ERROR_SIDE_LEFT) && validateNoRepeat(right, ERROR_SIDE_RIGHT)
+			&& validateNoOverlap(left, right);
+	}
+
+
+	private boolean validateLength(String text, int side) {
+		if (text == null || text.length() != 4) {
+			error = R.string.fn_key_order_error_wrong_key_count;
+			errorSide = side;
+			return false;
+		}
+
+		return true;
+	}
+
+
+	private boolean validateDigits(String text, int side) {
+		if (text == null || !text.matches("^[1-8]+$")) {
+			error = R.string.fn_key_order_error_unsupported_key_code;
+			errorSide = side;
+			return false;
+		}
+
+		return true;
+	}
+
+
+	private boolean validateNoRepeat(String text, int side) {
+		if (text == null) {
+			return true;
+		}
+
+		Set<Integer> digits = new HashSet<>();
+
+		for (char c : text.toCharArray()) {
+			int digit = Character.getNumericValue(c);
+			if (digits.contains(digit)) {
+				error = R.string.fn_key_order_error_duplicate_key;
+				errorSide = side;
+				return false;
+			}
+			digits.add(digit);
+		}
+
+		return true;
+	}
+
+
+	private boolean validateNoOverlap(String column, String otherColumn) {
+		if (column == null || otherColumn == null) {
+			return true;
+		}
+
+		for (int i = 0; i < column.length(); i++) {
+			char c = column.charAt(i);
+			if (otherColumn.indexOf(c) != -1) {
+				error = R.string.fn_key_order_error_key_on_both_sides;
+				errorSide = ERROR_SIDE_BOTH;
+				return false;
+			}
+		}
+
+		return true;
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/fnKeyOrder/ItemResetFnKeyOrder.java

@@ -0,0 +1,32 @@
+package io.github.sspanak.tt9.preferences.screens.fnKeyOrder;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.preferences.items.ItemClickable;
+import io.github.sspanak.tt9.preferences.settings.SettingsVirtualNumpad;
+
+public class ItemResetFnKeyOrder extends ItemClickable {
+	public final static String NAME = "pref_reset_fn_key_order";
+
+	private final LeftFnOrderPreference left;
+	private final RightFnOrderPreference right;
+
+	public ItemResetFnKeyOrder(Preference item, LeftFnOrderPreference left, RightFnOrderPreference right) {
+		super(item);
+		this.left = left;
+		this.right = right;
+	}
+
+	@Override
+	protected boolean onClick(Preference p) {
+		if (left == null || right == null) {
+			return false;
+		}
+
+		left.setText(SettingsVirtualNumpad.DEFAULT_LFN_KEY_ORDER);
+		right.setText(SettingsVirtualNumpad.DEFAULT_RFN_KEY_ORDER);
+		left.onTextChange();
+
+		return true;
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/fnKeyOrder/LeftFnOrderPreference.java

@@ -0,0 +1,71 @@
+package io.github.sspanak.tt9.preferences.screens.fnKeyOrder;
+
+import android.content.Context;
+import android.text.InputType;
+import android.util.AttributeSet;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.PreferenceViewHolder;
+
+import io.github.sspanak.tt9.preferences.items.TextInputPreference;
+import io.github.sspanak.tt9.preferences.settings.SettingsStore;
+
+public class LeftFnOrderPreference extends TextInputPreference {
+	public final static String NAME = "pref_lfn_key_order";
+
+	protected final SettingsStore settings;
+	@NonNull private Runnable textChangeHandler = () -> {};
+
+	public LeftFnOrderPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+		super(context, attrs, defStyleAttr, defStyleRes);
+		this.settings = new SettingsStore(context);
+	}
+	public LeftFnOrderPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+		super(context, attrs, defStyleAttr);
+		this.settings = new SettingsStore(context);
+	}
+	public LeftFnOrderPreference(@NonNull Context context, @Nullable AttributeSet attrs) {
+		super(context, attrs);
+		this.settings = new SettingsStore(context);
+	}
+	public LeftFnOrderPreference(@NonNull Context context) {
+		super(context);
+		this.settings = new SettingsStore(context);
+	}
+
+	@Override
+	public void onBindViewHolder(@NonNull PreferenceViewHolder holder) {
+		super.onBindViewHolder(holder);
+		populate();
+		if (textField != null) {
+			textField.setInputType(InputType.TYPE_CLASS_NUMBER);
+		}
+	}
+
+	void setTextChangeHandler(@NonNull Runnable handler) {
+		textChangeHandler = handler;
+	}
+
+	protected int getChangeHandlerDebounceTime() {
+		return SettingsStore.TEXT_INPUT_PUNCTUATION_ORDER_DEBOUNCE_TIME;
+	}
+
+	@Override
+	protected void onTextChange() {
+		textChangeHandler.run();
+	}
+
+	protected void populate() {
+		setText(settings.getLfnKeyOrder());
+	}
+
+	@Override
+	public void setError(@NonNull String error) {
+		super.setError(error);
+	}
+
+	void setText(@NonNull String newText) {
+		super.setText(newText);
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/fnKeyOrder/RightFnOrderPreference.java

@@ -0,0 +1,21 @@
+package io.github.sspanak.tt9.preferences.screens.fnKeyOrder;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public class RightFnOrderPreference extends LeftFnOrderPreference {
+	public final static String NAME = "pref_rfn_key_order";
+
+	public RightFnOrderPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); }
+	public RightFnOrderPreference(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+	public RightFnOrderPreference(@NonNull Context context, @Nullable AttributeSet attrs) { super(context, attrs); }
+	public RightFnOrderPreference(@NonNull Context context) { super(context); }
+
+	@Override
+	protected void populate() {
+		setText(settings.getRfnKeyOrder());
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/languageSelection/PreferenceSearchLanguage.java

@@ -9,9 +9,9 @@ import androidx.preference.Preference;
 
 import java.util.ArrayList;
 
-import io.github.sspanak.tt9.preferences.items.ItemSearch;
+import io.github.sspanak.tt9.preferences.items.SearchPreference;
 
-public class PreferenceSearchLanguage extends ItemSearch {
+public class PreferenceSearchLanguage extends SearchPreference {
 	@NonNull private ArrayList<PreferenceSwitchLanguage> languageItems = new ArrayList<>();
 	private Preference noResultItem;
 

app/src/main/java/io/github/sspanak/tt9/preferences/screens/punctuation/AbstractPreferenceCharList.java

@@ -9,10 +9,10 @@ import androidx.preference.PreferenceViewHolder;
 
 import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.languages.Language;
-import io.github.sspanak.tt9.preferences.items.ItemTextInput;
+import io.github.sspanak.tt9.preferences.items.TextInputPreference;
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
 
-abstract class AbstractPreferenceCharList extends ItemTextInput {
+abstract class AbstractPreferenceCharList extends TextInputPreference {
 	@NonNull protected String currentChars = "";
 	protected Language language;
 	private Runnable onRender;

app/src/main/java/io/github/sspanak/tt9/preferences/settings/SettingsHotkeys.java

@@ -6,7 +6,7 @@ import android.view.KeyEvent;
 
 import io.github.sspanak.tt9.util.Logger;
 
-public class SettingsHotkeys extends SettingsUI {
+public class SettingsHotkeys extends SettingsVirtualNumpad {
 	private static final String HOTKEY_VERSION = "hotkeys_v6";
 
 	public static final String FUNC_ADD_WORD = "key_add_word";

app/src/main/java/io/github/sspanak/tt9/preferences/settings/SettingsUI.java

@@ -2,7 +2,6 @@ package io.github.sspanak.tt9.preferences.settings;
 
 import android.content.Context;
 import android.content.res.Configuration;
-import android.util.TypedValue;
 import android.view.Gravity;
 
 import androidx.appcompat.app.AppCompatDelegate;
@@ -20,10 +19,6 @@ public class SettingsUI extends SettingsTyping {
 	public final static int LAYOUT_SMALL = 3;
 	public final static int LAYOUT_NUMPAD = 4;
 
-	public final static int NUMPAD_SHAPE_SQUARE = 0;
-	public final static int NUMPAD_SHAPE_V = 1;
-	public final static int NUMPAD_SHAPE_LONG_SPACE = 2;
-
 	private final int DEFAULT_LAYOUT;
 
 	public final static int MIN_WIDTH_PERCENT = 50;
@@ -42,10 +37,6 @@ public class SettingsUI extends SettingsTyping {
 		}
 	}
 
-	public boolean areArrowKeysHidden() {
-		return !prefs.getBoolean("pref_arrow_keys_visible", true);
-	}
-
 	public boolean getAddWordsNoConfirmation() {
 		return prefs.getBoolean("add_word_no_confirmation", false);
 	}
@@ -84,40 +75,6 @@ public class SettingsUI extends SettingsTyping {
 		prefsEditor.apply();
 	}
 
-	public int getNumpadKeyDefaultHeight() {
-		return context.getResources().getDimensionPixelSize(R.dimen.numpad_key_height);
-	}
-
-	public int getNumpadKeyHeight() {
-		return getStringifiedInt("pref_numpad_key_height", getNumpadKeyDefaultHeight());
-	}
-
-	public float getNumpadFnKeyDefaultScale() {
-		// The simpler getResource.getFloat() requires API 29, so we must get the value manually.
-		try {
-			TypedValue outValue = new TypedValue();
-			context.getResources().getValue(R.dimen.numpad_key_fn_layout_weight, outValue, true);
-			return outValue.getFloat();
-		} catch (Exception e) {
-			return 0.625f;
-		}
-	}
-
-	public float getNumpadFnKeyScale() {
-		return getStringifiedFloat("pref_numpad_fn_key_width", getNumpadFnKeyDefaultScale());
-	}
-
-	public int getNumpadKeyFontSizePercent() {
-		return isMainLayoutNumpad() ? getStringifiedInt("pref_numpad_key_font_size", 100) : 100;
-	}
-
-	public int getNumpadShape() {
-		return getStringifiedInt("pref_numpad_shape", NUMPAD_SHAPE_SQUARE);
-	}
-
-	public boolean isNumpadShapeLongSpace() { return getNumpadShape() == NUMPAD_SHAPE_LONG_SPACE; }
-	public boolean isNumpadShapeV() { return getNumpadShape() == NUMPAD_SHAPE_V; }
-
 	public int getSettingsFontSize() {
 		int defaultSize = DeviceInfo.IS_QIN_F21 || DeviceInfo.IS_LG_X100S ? FONT_SIZE_LARGE : FONT_SIZE_DEFAULT;
 		return getStringifiedInt("pref_font_size", defaultSize);

app/src/main/java/io/github/sspanak/tt9/preferences/settings/SettingsVirtualNumpad.java

@@ -0,0 +1,91 @@
+package io.github.sspanak.tt9.preferences.settings;
+
+import android.content.Context;
+import android.util.TypedValue;
+
+import java.util.HashMap;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.preferences.screens.fnKeyOrder.FnKeyOrderValidator;
+
+public class SettingsVirtualNumpad extends SettingsUI {
+	public final static int NUMPAD_SHAPE_SQUARE = 0;
+	public final static int NUMPAD_SHAPE_V = 1;
+	public final static int NUMPAD_SHAPE_LONG_SPACE = 2;
+
+	public static final String DEFAULT_LFN_KEY_ORDER = "1234";
+	public static final String DEFAULT_RFN_KEY_ORDER = "5678";
+
+	public static final HashMap<Character, Integer> KEY_ORDER_MAP = new HashMap<>() {{
+		put('1', R.id.soft_key_wrapper_1);
+		put('2', R.id.soft_key_wrapper_2);
+		put('3', R.id.soft_key_wrapper_3);
+		put('4', R.id.soft_key_wrapper_4);
+		put('5', R.id.soft_key_wrapper_5);
+		put('6', R.id.soft_key_wrapper_6);
+		put('7', R.id.soft_key_wrapper_7);
+		put('8', R.id.soft_key_wrapper_8);
+	}};
+
+	SettingsVirtualNumpad(Context context) {
+		super(context);
+	}
+
+	public boolean areArrowKeysHidden() {
+		return !prefs.getBoolean("pref_arrow_keys_visible", true);
+	}
+
+	public String getLfnKeyOrder() {
+		return prefs.getString("pref_lfn_key_order", DEFAULT_LFN_KEY_ORDER);
+	}
+
+	public String getRfnKeyOrder() {
+		return prefs.getString("pref_rfn_key_order", DEFAULT_RFN_KEY_ORDER);
+	}
+
+	public FnKeyOrderValidator setFnKeyOrder(String left, String right) {
+		FnKeyOrderValidator validator = new FnKeyOrderValidator(left, right);
+		if (validator.validate()) {
+			prefsEditor
+				.putString("pref_rfn_key_order", right)
+				.putString("pref_lfn_key_order", left)
+				.apply();
+		}
+
+		return validator;
+	}
+
+	public int getNumpadKeyDefaultHeight() {
+		return context.getResources().getDimensionPixelSize(R.dimen.numpad_key_height);
+	}
+
+	public int getNumpadKeyHeight() {
+		return getStringifiedInt("pref_numpad_key_height", getNumpadKeyDefaultHeight());
+	}
+
+	public float getNumpadFnKeyDefaultScale() {
+		// The simpler getResource.getFloat() requires API 29, so we must get the value manually.
+		try {
+			TypedValue outValue = new TypedValue();
+			context.getResources().getValue(R.dimen.numpad_key_fn_layout_weight, outValue, true);
+			return outValue.getFloat();
+		} catch (Exception e) {
+			return 0.625f;
+		}
+	}
+
+	public float getNumpadFnKeyScale() {
+		return getStringifiedFloat("pref_numpad_fn_key_width", getNumpadFnKeyDefaultScale());
+	}
+
+	public int getNumpadKeyFontSizePercent() {
+		return isMainLayoutNumpad() ? getStringifiedInt("pref_numpad_key_font_size", 100) : 100;
+	}
+
+	public int getNumpadShape() {
+		return getStringifiedInt("pref_numpad_shape", NUMPAD_SHAPE_SQUARE);
+	}
+
+	public boolean isNumpadShapeLongSpace() { return getNumpadShape() == NUMPAD_SHAPE_LONG_SPACE; }
+	public boolean isNumpadShapeV() { return getNumpadShape() == NUMPAD_SHAPE_V; }
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/MainLayoutNumpad.java

@@ -1,23 +1,31 @@
 package io.github.sspanak.tt9.ui.main;
 
 import android.content.res.Resources;
+import android.view.View;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
 
 import androidx.annotation.NonNull;
 
 import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
 
 import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.ime.TraditionalT9;
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
+import io.github.sspanak.tt9.preferences.settings.SettingsVirtualNumpad;
 import io.github.sspanak.tt9.ui.main.keys.SoftKey;
 import io.github.sspanak.tt9.ui.main.keys.SoftKeySettings;
+import io.github.sspanak.tt9.util.Logger;
 import io.github.sspanak.tt9.util.sys.DeviceInfo;
 
 class MainLayoutNumpad extends BaseMainLayout {
-	private boolean isTextEditingShown = false;
+	private static final String LOG_TAG = MainLayoutNumpad.class.getSimpleName();
+
+	@NonNull private String lastFnKeyOrder = "";
 	private int height;
+	private boolean isTextEditingShown = false;
 
 
 	MainLayoutNumpad(TraditionalT9 tt9) {
@@ -217,18 +225,16 @@ class MainLayoutNumpad extends BaseMainLayout {
 
 
 		// left Fn
-		ViewGroup left = view.findViewById(R.id.numpad_column_fn_left);
+		keys.add(view.findViewById(R.id.soft_key_settings));
-		keys.add(left.findViewById(R.id.soft_key_settings));
+		keys.add(view.findViewById(R.id.soft_key_add_word));
-		keys.add(left.findViewById(R.id.soft_key_add_word));
+		keys.add(view.findViewById(R.id.soft_key_shift));
-		keys.add(left.findViewById(R.id.soft_key_shift));
+		keys.add(view.findViewById(R.id.soft_key_lf4));
-		keys.add(left.findViewById(R.id.soft_key_lf4));
 
 		// right Fn
-		ViewGroup right = view.findViewById(R.id.numpad_column_fn_right);
+		keys.add(view.findViewById(R.id.soft_key_numpad_backspace));
-		keys.add(right.findViewById(R.id.soft_key_numpad_backspace));
+		keys.add(view.findViewById(R.id.soft_key_filter));
-		keys.add(right.findViewById(R.id.soft_key_filter));
+		keys.add(view.findViewById(R.id.soft_key_rf3));
-		keys.add(right.findViewById(R.id.soft_key_rf3));
+		keys.add(view.findViewById(R.id.soft_key_numpad_ok));
-		keys.add(right.findViewById(R.id.soft_key_numpad_ok));
 
 		// digits panel
 		ViewGroup table = view.findViewById(R.id.main_soft_keys);
@@ -270,11 +276,65 @@ class MainLayoutNumpad extends BaseMainLayout {
 	}
 
 
+	private void reorderFnKeys() {
+		if (view == null) {
+			return;
+		}
+
+		ViewGroup left = view.findViewById(R.id.numpad_column_fn_left);
+		ViewGroup right = view.findViewById(R.id.numpad_column_fn_right);
+		if (left == null || right == null) {
+			Logger.w(LOG_TAG, "Reordering keys failed: left or right column is null");
+			return;
+		}
+
+		String lfnOrder = tt9.getSettings().getLfnKeyOrder();
+		String rfnOrder = tt9.getSettings().getRfnKeyOrder();
+
+		final String newOrder = lfnOrder + "," + rfnOrder;
+		if (newOrder.equals(lastFnKeyOrder)) {
+			Logger.d(LOG_TAG, "Preserving current key order: '" + lastFnKeyOrder + "'");
+			return;
+		}
+
+		Map<Integer, View> keyWrappers = new HashMap<>();
+		for (Map.Entry<Character, Integer> entry : SettingsVirtualNumpad.KEY_ORDER_MAP.entrySet()) {
+			keyWrappers.put(entry.getValue(), view.findViewById(entry.getValue()));
+		}
+
+		reorderFnColumn(left, lfnOrder, keyWrappers);
+		reorderFnColumn(right, rfnOrder, keyWrappers);
+
+		lastFnKeyOrder = newOrder;
+		Logger.d(LOG_TAG, "Reordered keys: '" + lastFnKeyOrder + "'");
+	}
+
+
+	private void reorderFnColumn(ViewGroup column, String order, Map<Integer, View> keyWrappers) {
+		for (char keyId : order.toCharArray()) {
+			Integer viewId = SettingsVirtualNumpad.KEY_ORDER_MAP.get(keyId);
+			if (viewId == null) {
+				continue;
+			}
+
+			View key = keyWrappers.get(viewId);
+			if (key == null) {
+				Logger.w(LOG_TAG, "Failed reordering a NULL key with expected ID: " + keyId);
+				continue;
+			}
+
+			((ViewGroup) key.getParent()).removeView(key);
+			column.addView(key);
+		}
+	}
+
+
 	@Override
 	void render() {
 		int defaultKeyHeight = calculateKeyHeight();
 
 		getView();
+		reorderFnKeys();
 		enableClickHandlers();
 		setKeyHeight(defaultKeyHeight);
 		preventEdgeToEdge();

app/src/main/res/layout/panel_numpad_left.xml

@@ -4,28 +4,28 @@
 	style="@style/TTheme.Numpad.Column.Fn"
 	android:id="@+id/numpad_column_fn_left">
 
-	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_1">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeySettings
 			style="@style/TTheme.Numpad.Key.Large"
 			android:id="@+id/soft_key_settings" />
 		<include layout="@layout/key_overlay_settings" />
 	</RelativeLayout>
 
-	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_2">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyAddWord
 			style="@style/TTheme.Numpad.Key.Large"
 			android:id="@+id/soft_key_add_word" />
 		<include layout="@layout/key_overlay_icons" />
 	</RelativeLayout>
 
-	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_3">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyShift
 			style="@style/TTheme.Numpad.Key.Large"
 			android:id="@+id/soft_key_shift" />
 		<include layout="@layout/key_overlay_icons" />
 	</RelativeLayout>
 
-	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_4">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyLF4
 			style="@style/TTheme.Numpad.Key.LF4"
 			android:id="@+id/soft_key_lf4" />

app/src/main/res/layout/panel_numpad_right.xml

@@ -4,25 +4,29 @@
 	style="@style/TTheme.Numpad.Column.Fn"
 	android:id="@+id/numpad_column_fn_right">
 
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_5">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyBackspace
 			style="@style/TTheme.Numpad.Key.Large"
 			android:id="@+id/soft_key_numpad_backspace" />
+	</RelativeLayout>
 
-	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_6">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyFilter
 			style="@style/TTheme.Numpad.Key.Large"
 			android:id="@+id/soft_key_filter" />
 		<include layout="@layout/key_overlay_icons" />
 	</RelativeLayout>
 
-	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_7">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyRF3
 			style="@style/TTheme.Numpad.Key.Large"
 			android:id="@+id/soft_key_rf3" />
 		<include layout="@layout/key_overlay_icons" />
 	</RelativeLayout>
 
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper" android:id="@+id/soft_key_wrapper_8">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyOk
 			style="@style/TTheme.Numpad.Key.OK"
 			android:id="@+id/soft_key_numpad_ok" />
+	</RelativeLayout>
 </LinearLayout>

app/src/main/res/values-bg/strings.xml

@@ -45,6 +45,7 @@
 	<string name="pref_category_abc_mode">Режим АБВ</string>
 	<string name="pref_category_custom_words">Добавени думи</string>
 	<string name="pref_category_delete_words">Изтрий добавени думи</string>
+	<string name="pref_category_fn_key_order">Ред на функционалните клавиши</string>
 	<string name="pref_category_hacks">Съвместимост</string>
 	<string name="pref_category_appearance">Облик</string>
 	<string name="pref_category_function_keys">Бутони за бърз достъп</string>
@@ -199,7 +200,7 @@
 	<string name="punctuation_order_save_error">Неуспешно запазване на реда на знаците.</string>
 	<string name="punctuation_order_sentence">Ред на символите на клавиш 1</string>
 	<string name="punctuation_order_special">Ред на символите на клавиш 0</string>
-	<string name="punctuation_order_reset_defaults">Възстанови реда по подразбиране</string>
+	<string name="restore_default_order">Възстанови реда по подразбиране</string>
 	<string name="language">Език</string>
 	<string name="punctuation_order_save">Запази подредбата</string>
 	<string name="punctuation_order_forbidden_char">Забранен символ:%1$s</string>
@@ -210,10 +211,18 @@
 	<string name="pref_numpad_shape_v">V-образна</string>
 	<string name="pref_arrow_keys_visible">Клавиши стрелки</string>
 	<string name="donate_hold_to_open">Натиснете и задръжте, за да отворите в браузъра.</string>
+	<string name="fn_key_order_error_duplicate_key">Не са разрешени повтарящи се клавиши.</string>
+	<string name="fn_key_order_legend">Легенда:</string>
+	<string name="fn_key_order_preview_tip">Съвет: След пренареждане на клавишите в колона 1, докоснете колона 2, за да видите резултата веднага (или обратно).</string>
 	<string name="function_already_assigned">Бутон „%1$s“ е зададен за функция „%2$s“. Искате ли да го зададете за „%3$s“?</string>
 	<string name="function_assign_instructions">* Натиснете или задръжте клавиш, за да го присвоите на функцията „%1$s“.\n\n* Натиснете 0, за да отмените.\n\n* Натиснете 2, за да деактивирате функцията.</string>
 	<string name="pref_allow_composing_text">Показвай текст при съставяне</string>
 	<string name="pref_drag_resize">Оразмеряване чрез влачене</string>
 	<string name="function_undo">Отмяна (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Преизчисли долното отстояние</string>
+	<string name="fn_key_order_column_2">Колона 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Трябва да има точно по 4 клавиша в колона.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Разрешени са само кодове на клавиши от 1 до 8.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Един клавиш не може да бъде поставен и в двете колони.</string>
+	<string name="fn_key_order_column_1">Колона 1</string>
 </resources>

app/src/main/res/values-de/strings.xml

@@ -66,6 +66,7 @@
 	<string name="pref_category_abc_mode">ABC-Modus</string>
 	<string name="pref_category_custom_words">Hinzugefügte Wörter</string>
 	<string name="pref_category_delete_words">Hinzugefügte Wörter löschen</string>
+	<string name="pref_category_fn_key_order">Reihenfolge der Funktionstasten</string>
 	<string name="pref_category_hacks">Kompatibilität</string>
 	<string name="dictionary_loading_indeterminate">Lade Wörterbuch</string>
 	<string name="pref_category_appearance">Erscheinungsbild</string>
@@ -188,7 +189,7 @@
 	<string name="punctuation_order_save_error">Zeichenreihenfolge konnte nicht gespeichert werden.</string>
 	<string name="punctuation_order_sentence">Zeichenreihenfolge der 1-Taste</string>
 	<string name="punctuation_order_special">Zeichenreihenfolge der 0-Taste</string>
-	<string name="punctuation_order_reset_defaults">Standardreihenfolge wiederherstellen</string>
+	<string name="restore_default_order">Standardreihenfolge wiederherstellen</string>
 	<string name="language">Sprache</string>
 	<string name="punctuation_order_save">Reihenfolge speichern</string>
 	<string name="punctuation_order_forbidden_char">Verbotenes Zeichen:%1$s</string>
@@ -203,6 +204,9 @@
 	<string name="pref_arrow_keys_visible">Pfeiltasten</string>
 	<string name="donate_hold_to_open">Drücken und halten, um in einem Browser zu öffnen.</string>
 	<string name="key_key">Taste</string>
+	<string name="fn_key_order_error_duplicate_key">Doppelte Tasten sind nicht erlaubt.</string>
+	<string name="fn_key_order_legend">Legende:</string>
+	<string name="fn_key_order_preview_tip">Tipp: Nach dem Neuanordnen der Tasten in Spalte 1, tippe auf Spalte 2, um das Ergebnis sofort zu sehen (oder umgekehrt).</string>
 	<string name="function_already_assigned">\tDie Taste \"%1$s\" ist bereits der Funktion \"%2$s\" zugewiesen. Möchten Sie sie \"%3$s\" zuweisen?</string>
 	<string name="function_assign_instructions">* Drücken oder halten Sie eine Taste, um sie der Funktion \"%1$s\" zuzuweisen.\n\n* Drücken Sie 0, um abzubrechen.\n\n* Drücken Sie 2, um die Funktion zu deaktivieren.</string>
 	<string name="function_reassign">Neu zuweisen</string>
@@ -218,4 +222,9 @@
 	<string name="pref_drag_resize">Größe durch Ziehen ändern</string>
 	<string name="function_undo">Rückgängig machen</string>
 	<string name="pref_hack_precalculate_navbar_height">Unteren Abstand neu berechnen</string>
+	<string name="fn_key_order_column_2">Spalte 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Es müssen genau 4 Tasten pro Spalte sein.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Nur Tastencodes 1–8 sind erlaubt.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Eine Taste kann nicht in beiden Spalten platziert werden.</string>
+	<string name="fn_key_order_column_1">Spalte 1</string>
 </resources>

app/src/main/res/values-es/strings.xml

@@ -22,6 +22,7 @@
 	<string name="pref_category_abc_mode">Modo ABC</string>
 	<string name="pref_category_custom_words">Palabras añadidas</string>
 	<string name="pref_category_delete_words">Eliminar palabras añadidas</string>
+	<string name="pref_category_fn_key_order">Orden de las teclas de función</string>
 	<string name="pref_category_hacks">Compatibilidad</string>
 	<string name="pref_category_appearance">Apariencia</string>
 	<string name="pref_category_function_keys">Teclas de acceso rápido</string>
@@ -199,7 +200,7 @@
 	<string name="punctuation_order_save_error">Error al guardar el orden de los caracteres.</string>
 	<string name="punctuation_order_sentence">Orden de caracteres de la tecla 1</string>
 	<string name="punctuation_order_special">Orden de caracteres de la tecla 0</string>
-	<string name="punctuation_order_reset_defaults">Restaurar el orden predeterminado</string>
+	<string name="restore_default_order">Restaurar el orden predeterminado</string>
 	<string name="language">Idioma</string>
 	<string name="punctuation_order_save">Guardar orden</string>
 	<string name="punctuation_order_forbidden_char">Carácter prohibido:%1$s</string>
@@ -210,10 +211,18 @@
 	<string name="pref_numpad_shape_v">Forma de V</string>
 	<string name="pref_arrow_keys_visible">Teclas de flecha</string>
 	<string name="donate_hold_to_open">Mantén presionado para abrir en un navegador.</string>
+	<string name="fn_key_order_error_duplicate_key">No se permiten teclas duplicadas.</string>
+	<string name="fn_key_order_legend">Leyenda:</string>
+	<string name="fn_key_order_preview_tip">Sugerencia: Después de reorganizar las teclas en la columna 1, toca la columna 2 para ver el resultado al instante (o viceversa).</string>
 	<string name="function_already_assigned">La tecla \"%1$s\" ya está asignada a la función \"%2$s\". ¿Desea asignarla a \"%3$s\"?</string>
 	<string name="function_assign_instructions">* Presione o mantenga pulsada una tecla para asignarla a la función \"%1$s\".\n\n* Presione 0 para cancelar.\n\n* Presione 2 para desactivar la función.</string>
 	<string name="pref_allow_composing_text">Mostrar texto en composición</string>
 	<string name="pref_drag_resize">Redimensionar arrastrando</string>
 	<string name="function_undo">Deshacer</string>
 	<string name="pref_hack_precalculate_navbar_height">Recalcular el relleno inferior</string>
+	<string name="fn_key_order_column_2">Columna 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Debe haber exactamente 4 teclas por columna.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Solo se permiten los códigos de tecla del 1 al 8.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Una tecla no puede colocarse en ambas columnas.</string>
+	<string name="fn_key_order_column_1">Columna 1</string>
 </resources>

app/src/main/res/values-fr/strings.xml

@@ -45,6 +45,7 @@
 	<string name="pref_category_abc_mode">Saisie ABC</string>
 	<string name="pref_category_custom_words">Mots ajoutés</string>
 	<string name="pref_category_delete_words">Supprimer des mots ajoutés</string>
+	<string name="pref_category_fn_key_order">Ordre des touches de fonction</string>
 	<string name="pref_category_hacks">Compatibilité</string>
 	<string name="pref_category_appearance">Apparance</string>
 	<string name="dictionary_load_bad_char">Echec du chargement. Mot inadmissible à la ligne %1$d de langue «%2$s».</string>
@@ -197,7 +198,7 @@
 	<string name="punctuation_order_save_error">Échec de l’enregistrement de l’ordre des caractères.</string>
 	<string name="punctuation_order_sentence">Ordre des caractères de la touche 1</string>
 	<string name="punctuation_order_special">Ordre des caractères de la touche 0</string>
-	<string name="punctuation_order_reset_defaults">Restaurer l’ordre par défaut</string>
+	<string name="restore_default_order">Restaurer l’ordre par défaut</string>
 	<string name="language">Langue</string>
 	<string name="punctuation_order_save">Enregistrer l’ordre</string>
 	<string name="punctuation_order_forbidden_char">Caractère interdit:%1$s</string>
@@ -209,6 +210,9 @@
 	<string name="pref_arrow_keys_visible">Touches fléchées</string>
 	<string name="donate_hold_to_open">Appuyez et maintenez pour ouvrir dans un navigateur.</string>
 	<string name="key_key">Touche</string>
+	<string name="fn_key_order_error_duplicate_key">Les touches en double ne sont pas autorisées.</string>
+	<string name="fn_key_order_legend">Légende :</string>
+	<string name="fn_key_order_preview_tip">Astuce : Après avoir réorganisé les touches dans la colonne 1, touchez la colonne 2 pour voir le résultat immédiatement (ou inversement).</string>
 	<string name="function_already_assigned">La touche \"%1$s\" est déjà attribuée à la fonction \"%2$s\". Voulez-vous l’attribuer à \"%3$s\" ?</string>
 	<string name="function_assign_instructions">* Appuyez ou maintenez une touche pour l’attribuer à la fonction \"%1$s\".\n\n* Appuyez sur 0 pour annuler.\n\n* Appuyez sur 2 pour désactiver la fonction.</string>
 	<string name="key_hold_key">(maintenir)</string>
@@ -216,4 +220,9 @@
 	<string name="pref_drag_resize">Redimensionner en faisant glisser</string>
 	<string name="function_undo">Annuler (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Recalculer le remplissage inférieur</string>
+	<string name="fn_key_order_column_2">Colonne 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Il doit y avoir exactement 4 touches par colonne.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Seuls les codes de touche 1 à 8 sont autorisés.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Une touche ne peut pas être placée dans les deux colonnes.</string>
+	<string name="fn_key_order_column_1">Colonne 1</string>
 </resources>

app/src/main/res/values-it/strings.xml

@@ -61,6 +61,7 @@
 	<string name="pref_category_abc_mode">Modalità ABC</string>
 	<string name="pref_category_custom_words">Parole aggiunte</string>
 	<string name="pref_category_delete_words">Elimina parole aggiunte</string>
+	<string name="pref_category_fn_key_order">Ordine dei tasti funzione</string>
 	<string name="pref_category_hacks">Compatibilità</string>
 	<string name="pref_category_appearance">Aspetto</string>
 	<string name="pref_category_predictive_mode">Scrittura facilitata</string>
@@ -186,7 +187,7 @@
 	<string name="punctuation_order_save_error">Salvataggio dell’ordine dei caratteri non riuscito.</string>
 	<string name="punctuation_order_sentence">Ordine dei caratteri del tasto 1</string>
 	<string name="punctuation_order_special">Ordine dei caratteri del tasto 0</string>
-	<string name="punctuation_order_reset_defaults">Ripristina ordine predefinito</string>
+	<string name="restore_default_order">Ripristina ordine predefinito</string>
 	<string name="language">Lingua</string>
 	<string name="punctuation_order_save">Salvare l\'ordine</string>
 	<string name="punctuation_order_forbidden_char">Carattere vietato:%1$s</string>
@@ -201,6 +202,9 @@
 	<string name="pref_arrow_keys_visible">Tasti freccia</string>
 	<string name="donate_hold_to_open">Tieni premuto per aprire nel browser.</string>
 	<string name="key_key">Tasto</string>
+	<string name="fn_key_order_error_duplicate_key">Non sono consentiti tasti duplicati.</string>
+	<string name="fn_key_order_legend">Legenda:</string>
+	<string name="fn_key_order_preview_tip">Suggerimento: Dopo aver riordinato i tasti nella colonna 1, tocca la colonna 2 per vedere subito il risultato (o viceversa).</string>
 	<string name="function_already_assigned">Il tasto \"%1$s\" è già assegnato alla funzione \"%2$s\". Vuoi assegnarlo a \"%3$s\"?</string>
 	<string name="function_assign_instructions">* Premi o tieni premuto un tasto per assegnarlo alla funzione \"%1$s\".\n\n* Premi 0 per annullare.\n\n* Premi 2 per disabilitare la funzione.</string>
 	<string name="function_reassign">Riassegnare</string>
@@ -219,5 +223,10 @@
 	<string name="pref_drag_resize">Ridimensionare trascinando</string>
 	<string name="function_undo">Annulla (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Ricalcola il margine inferiore</string>
+	<string name="fn_key_order_column_2">Colonna 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Devono esserci esattamente 4 tasti per colonna.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Sono consentiti solo i codici dei tasti da 1 a 8.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Un tasto non può essere inserito in entrambe le colonne.</string>
+	<string name="fn_key_order_column_1">Colonna 1</string>
 </resources>
 

app/src/main/res/values-iw/strings.xml

@@ -20,6 +20,7 @@
 	<string name="pref_category_abc_mode">מצב אבג</string>
 	<string name="pref_category_custom_words">מילים שהוספו</string>
 	<string name="pref_category_delete_words">מחק מילים שהוספו</string>
+	<string name="pref_category_fn_key_order">סדר מקשי פונקציה</string>
 	<string name="pref_category_hacks">הגדרות תאימות</string>
 	<string name="pref_category_appearance">מראה</string>
 	<string name="pref_category_predictive_mode">מצב חיזוי</string>
@@ -200,7 +201,7 @@
 	<string name="punctuation_order_save_error">שמירת סדר התווים נכשלה.</string>
 	<string name="punctuation_order_sentence">סדר התווים של מקש 1</string>
 	<string name="punctuation_order_special">סדר התווים של מקש 0</string>
-	<string name="punctuation_order_reset_defaults">שחזר את הסדר המוגדר כברירת מחדל</string>
+	<string name="restore_default_order">שחזר את הסדר המוגדר כברירת מחדל</string>
 	<string name="language">שפה</string>
 	<string name="punctuation_order_save">שמור את הסדר</string>
 	<string name="punctuation_order_forbidden_char">תו אסור:%1$s</string>
@@ -214,6 +215,9 @@
 	<string name="pref_arrow_keys_visible">מקשי חצים</string>
 	<string name="donate_summary">אם אתה אוהב %1$s, אתה יכול לקנות לי בירה.</string>
 	<string name="donate_hold_to_open">לחצו והחזיקו כדי לפתוח בדפדפן.</string>
+	<string name="fn_key_order_error_duplicate_key">לא ניתן להשתמש באותם מקשים פעמיים.</string>
+	<string name="fn_key_order_legend">מקרא:</string>
+	<string name="fn_key_order_preview_tip">טיפ: לאחר שינוי סדר המקשים בעמודה 1, הקש על עמודה 2 כדי לראות את התוצאה מיד (או להפך).</string>
 	<string name="function_already_assigned">המקש \"%1$s\" כבר מוקצה לפונקציה \"%2$s\". האם ברצונך להקצות אותו ל-“%3$s”?</string>
 	<string name="function_assign_instructions">* לחצו או החזיקו מקש כדי להקצות אותו לפונקציה \"%1$s\". \n\n* לחצו 0 כדי לבטל. \n\n* לחצו 2 כדי להשבית את הפונקציה.</string>
 	<string name="function_filter_clear">נקה מסנן</string>
@@ -223,4 +227,9 @@
 	<string name="pref_drag_resize">שינוי גודל על ידי גרירה</string>
 	<string name="function_undo">ביטול (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">חשב מחדש ריווח תחתון</string>
+	<string name="fn_key_order_column_2">עמודה 2</string>
+	<string name="fn_key_order_error_wrong_key_count">חייבים להיות בדיוק 4 מקשים בכל עמודה.</string>
+	<string name="fn_key_order_error_unsupported_key_code">רק קודי מקשים 1–8 מותרים.</string>
+	<string name="fn_key_order_error_key_on_both_sides">לא ניתן למקם מקש אחד בשתי העמודות.</string>
+	<string name="fn_key_order_column_1">עמודה 1</string>
 </resources>

app/src/main/res/values-lt/strings.xml

@@ -19,6 +19,7 @@
 	<string name="commands_select_command">Pasirinkti komandą</string>
 	<string name="pref_category_about">Apie programėlę</string>
 	<string name="pref_category_abc_mode">ABC metodas</string>
+	<string name="pref_category_fn_key_order">Funkcinių klavišų tvarka</string>
 	<string name="pref_category_hacks">Suderinamumas</string>
 	<string name="pref_category_appearance">Išvaizda</string>
 	<string name="pref_category_predictive_mode">Nuspėjamumas</string>
@@ -208,7 +209,7 @@
 	<string name="punctuation_order_save_error">Nepavyko išsaugoti simbolių tvarkos.</string>
 	<string name="punctuation_order_sentence">Simbolių tvarka ant klavišo 1</string>
 	<string name="punctuation_order_special">Simbolių tvarka ant klavišo 0</string>
-	<string name="punctuation_order_reset_defaults">Atkurti numatytąją tvarką</string>
+	<string name="restore_default_order">Atkurti numatytąją tvarką</string>
 	<string name="language">Kalba</string>
 	<string name="punctuation_order_save">Išsaugoti tvarką</string>
 	<string name="punctuation_order_forbidden_char">Draudžiamas simbolis:%1$s</string>
@@ -219,10 +220,18 @@
 	<string name="pref_numpad_shape_v">V formos</string>
 	<string name="pref_arrow_keys_visible">Rodyklių klavišai</string>
 	<string name="donate_hold_to_open">Paspauskite ir laikykite, kad atidarytumėte naršyklėje.</string>
+	<string name="fn_key_order_error_duplicate_key">Pasikartojantys klavišai neleidžiami.</string>
+	<string name="fn_key_order_legend">Legenda:</string>
+	<string name="fn_key_order_preview_tip">Patarimas: Perkėlus klavišus 1 stulpelyje, palieskite 2 stulpelį, kad iškart pamatytumėte rezultatą (arba atvirkščiai).</string>
 	<string name="function_already_assigned">Klavišas „%1$s“ jau priskirtas funkcijai „%2$s“. Ar norite jį priskirti „%3$s“?</string>
 	<string name="function_assign_instructions">* Paspauskite arba palaikykite klavišą, kad priskirtumėte jį funkcijai „%1$s“.\n\n* Paspauskite 0, kad atšauktumėte.\n\n* Paspauskite 2, kad išjungtumėte funkciją.</string>
 	<string name="pref_allow_composing_text">Rodyti rašomą tekstą</string>
 	<string name="pref_drag_resize">Keisti dydį tempiant</string>
 	<string name="function_undo">Atšaukti (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Perskaičiuoti apatinį paraštę</string>
+	<string name="fn_key_order_column_2">Stulpelis 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Kiekvienoje stulpelyje turi būti tiksliai 4 klavišai.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Leidžiami tik klavišų kodai nuo 1 iki 8.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Vieno klavišo negalima dėti į abu stulpelius.</string>
+	<string name="fn_key_order_column_1">Stulpelis 1</string>
 </resources>

app/src/main/res/values-nl/strings.xml

@@ -69,6 +69,7 @@
 	<string name="pref_category_abc_mode">ABC-modus</string>
 	<string name="pref_category_custom_words">Toegevoegde woorden</string>
 	<string name="pref_category_delete_words">Verwijder toegevoegde woorden</string>
+	<string name="pref_category_fn_key_order">Volgorde van functietoetsen</string>
 	<string name="pref_category_hacks">Compatibiliteit</string>
 	<string name="dictionary_loading_indeterminate">Woordenboek laden</string>
 	<string name="pref_category_appearance">Uiterlijk</string>
@@ -188,7 +189,7 @@
 	<string name="punctuation_order_save_error">Opslaan van de tekenvolgorde mislukt.</string>
 	<string name="punctuation_order_sentence">Tekenvolgorde van de 1-toets</string>
 	<string name="punctuation_order_special">Tekenvolgorde van de 0-toets</string>
-	<string name="punctuation_order_reset_defaults">Standaardvolgorde herstellen</string>
+	<string name="restore_default_order">Standaardvolgorde herstellen</string>
 	<string name="language">Taal</string>
 	<string name="punctuation_order_save">Volgorde opslaan</string>
 	<string name="punctuation_order_forbidden_char">Verboden teken:%1$s</string>
@@ -202,6 +203,9 @@
 	<string name="pref_numpad_shape_v">V-vorm</string>
 	<string name="donate_hold_to_open">Druk lang in om in een browser te openen.</string>
 	<string name="key_key">Toets</string>
+	<string name="fn_key_order_error_duplicate_key">Dubbele toetsen zijn niet toegestaan.</string>
+	<string name="fn_key_order_legend">Legenda:</string>
+	<string name="fn_key_order_preview_tip">Tip: Na het herschikken van de toetsen in kolom 1, tik op kolom 2 om het resultaat direct te zien (of andersom).</string>
 	<string name="function_already_assigned">Toets \"%1$s\" is al toegewezen aan functie \"%2$s\". Wilt u deze toewijzen aan \"%3$s\"?</string>
 	<string name="function_assign_instructions">* Druk of houd een toets ingedrukt om deze toe te wijzen aan de functie \"%1$s\".\n\n* Druk op 0 om te annuleren.\n\n* Druk op 2 om de functie uit te schakelen.</string>
 	<string name="function_reassign">Opnieuw toewijzen</string>
@@ -217,4 +221,9 @@
 	<string name="pref_allow_composing_text">Compositietekst weergeven</string>
 	<string name="function_undo">Ongedaan maken</string>
 	<string name="pref_hack_precalculate_navbar_height">Onderrand opnieuw berekenen</string>
+	<string name="fn_key_order_column_2">Kolom 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Er moeten precies 4 toetsen per kolom zijn.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Alleen toetscodes 1–8 zijn toegestaan.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Eén toets kan niet in beide kolommen staan.</string>
+	<string name="fn_key_order_column_1">Kolom 1</string>
 </resources>

app/src/main/res/values-pt-rBR/strings.xml

@@ -20,6 +20,7 @@
 	<string name="pref_category_abc_mode">Modo ABC</string>
 	<string name="pref_category_custom_words">Palavras adicionadas</string>
 	<string name="pref_category_delete_words">Excluir palavras adicionadas</string>
+	<string name="pref_category_fn_key_order">Ordem das teclas de função</string>
 	<string name="pref_category_hacks">Compatibilidade</string>
 	<string name="pref_category_appearance">Aparência</string>
 	<string name="pref_category_predictive_mode">Modo Predictivo</string>
@@ -201,7 +202,7 @@
 	<string name="punctuation_order_save_error">Falha ao salvar a ordem dos caracteres.</string>
 	<string name="punctuation_order_sentence">Ordem de caracteres da tecla 1</string>
 	<string name="punctuation_order_special">Ordem de caracteres da tecla 0</string>
-	<string name="punctuation_order_reset_defaults">Restaurar ordem padrão</string>
+	<string name="restore_default_order">Restaurar ordem padrão</string>
 	<string name="language">Idioma</string>
 	<string name="punctuation_order_save">Salvar ordem</string>
 	<string name="punctuation_order_forbidden_char">Caractere proibido:%1$s</string>
@@ -214,6 +215,9 @@
 	<string name="pref_numpad_shape_v">Forma em V</string>
 	<string name="pref_arrow_keys_visible">Teclas de seta</string>
 	<string name="donate_hold_to_open">Pressione e segure para abrir no navegador.</string>
+	<string name="fn_key_order_error_duplicate_key">Teclas duplicadas não são permitidas.</string>
+	<string name="fn_key_order_legend">Legenda:</string>
+	<string name="fn_key_order_preview_tip">Dica: Após reorganizar as teclas na coluna 1, toque na coluna 2 para ver o resultado imediatamente (ou vice-versa).</string>
 	<string name="function_already_assigned">A tecla \"%1$s\" já está atribuída à função \"%2$s\". Deseja atribuí-la a \"%3$s\"?</string>
 	<string name="function_assign_instructions">* Pressione ou segure uma tecla para atribuí-la à função \"%1$s\".\n\n* Pressione 0 para cancelar.\n\n* Pressione 2 para desativar a função.</string>
 	<string name="function_filter_clear">Limpar Filtro</string>
@@ -223,4 +227,9 @@
 	<string name="pref_drag_resize">Redimensionar arrastando</string>
 	<string name="function_undo">Desfazer</string>
 	<string name="pref_hack_precalculate_navbar_height">Recalcular o espaçamento inferior</string>
+	<string name="fn_key_order_column_2">Coluna 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Deve haver exatamente 4 teclas por coluna.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Apenas os códigos de tecla de 1 a 8 são permitidos.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Uma tecla não pode estar nas duas colunas.</string>
+	<string name="fn_key_order_column_1">Coluna 1</string>
 </resources>

app/src/main/res/values-ru/strings.xml

@@ -52,6 +52,7 @@
 	<string name="pref_category_abc_mode">Режим AБВ</string>
 	<string name="pref_category_custom_words">Добавленные слова</string>
 	<string name="pref_category_delete_words">Удалить добавленные слова</string>
+	<string name="pref_category_fn_key_order">Порядок функциональных клавиш</string>
 	<string name="pref_category_hacks">Cовместимость</string>
 	<string name="pref_category_appearance">Внешний вид</string>
 	<string name="pref_category_function_keys">Горячие клавиши</string>
@@ -199,7 +200,7 @@
 	<string name="punctuation_order_save_error">е удалось сохранить порядок символов.</string>
 	<string name="punctuation_order_sentence">Порядок символов на клавише 1</string>
 	<string name="punctuation_order_special">Порядок символов на клавише 0</string>
-	<string name="punctuation_order_reset_defaults">Восстановить порядок по умолчанию</string>
+	<string name="restore_default_order">Восстановить порядок по умолчанию</string>
 	<string name="language">Язык</string>
 	<string name="punctuation_order_save">Сохранить порядок</string>
 	<string name="punctuation_order_forbidden_char">Запрещённый символ:%1$s</string>
@@ -210,10 +211,18 @@
 	<string name="pref_numpad_shape_v">V-образная форма</string>
 	<string name="pref_arrow_keys_visible">Клавиши со стрелками</string>
 	<string name="donate_hold_to_open">Нажмите и удерживайте, чтобы открыть в браузере.</string>
+	<string name="fn_key_order_error_duplicate_key">Повторяющиеся клавиши не допускаются.</string>
+	<string name="fn_key_order_legend">Условные обозначения:</string>
+	<string name="fn_key_order_preview_tip">Подсказка: После изменения порядка клавиш в колонке 1 нажмите на колонку 2, чтобы сразу увидеть результат (или наоборот).</string>
 	<string name="function_already_assigned">Клавиша «%1$s» уже назначена на функцию «%2$s». Назначить её на «%3$s»?</string>
 	<string name="function_assign_instructions">* Нажмите или удерживайте клавишу, чтобы назначить её на функцию «%1$s».\n\n* Нажмите 0, чтобы отменить.\n\n* Нажмите 2, чтобы отключить функцию.</string>
 	<string name="pref_allow_composing_text">Показывать текст при вводе</string>
 	<string name="pref_drag_resize">Изменять размер перетаскиванием</string>
 	<string name="function_undo">Отменить (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Пересчитать нижний отступ</string>
+	<string name="fn_key_order_column_2">Столбец 2</string>
+	<string name="fn_key_order_error_wrong_key_count">В каждой колонке должно быть ровно 4 клавиши.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Разрешены только коды клавиш от 1 до 8.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Одна клавиша не может находиться в обеих колонках.</string>
+	<string name="fn_key_order_column_1">Столбец 1</string>
 </resources>

app/src/main/res/values-tr/strings.xml

@@ -63,6 +63,7 @@
 	<string name="pref_category_abc_mode">ABC Modu</string>
 	<string name="pref_category_custom_words">Eklenen sözcükler</string>
 	<string name="pref_category_delete_words">Eklenen sözcükleri sil</string>
+	<string name="pref_category_fn_key_order">Fonksiyon tuşlarının sırası</string>
 	<string name="pref_category_hacks">Uyumluluk</string>
 	<string name="dictionary_loading_indeterminate">Sözlüğü yükle</string>
 	<string name="pref_category_appearance">Görünüş</string>
@@ -201,7 +202,7 @@
 	<string name="punctuation_order_save_error">Karakter sırası kaydedilemedi.</string>
 	<string name="punctuation_order_sentence">1 tuşunun karakter sırası</string>
 	<string name="punctuation_order_special">0 tuşunun karakter sırası</string>
-	<string name="punctuation_order_reset_defaults">Varsayılan sırayı geri yükle</string>
+	<string name="restore_default_order">Varsayılan sırayı geri yükle</string>
 	<string name="language">Dil</string>
 	<string name="punctuation_order_save">Sıralamayı kaydet</string>
 	<string name="punctuation_order_forbidden_char">Yasaklı karakter:%1$s</string>
@@ -214,6 +215,9 @@
 	<string name="donate_summary">Eğer %1$s\'ı beğendiyseniz bana bir bira ısmarlayabilirsiniz</string>
 	<string name="donate_hold_to_open">Tarayıcıda açmak için basılı tutun.</string>
 	<string name="key_key">Tuş</string>
+	<string name="fn_key_order_error_duplicate_key">Yinelenen tuşlara izin verilmez.</string>
+	<string name="fn_key_order_legend">Açıklama:</string>
+	<string name="fn_key_order_preview_tip">İpucu: 1. sütundaki tuşları yeniden sıraladıktan sonra sonucu hemen görmek için 2. sütuna dokunun (veya tam tersi).</string>
 	<string name="function_already_assigned">\"%1$s\" tuşu zaten \"%2$s\" işlevine atanmış. Onu \"%3$s\" işlevine atamak ister misiniz?</string>
 	<string name="function_assign_instructions">* \"%1$s\" işlevine atamak için bir tuşa basın veya basılı tutun.\n\n* İptal etmek için 0\'a basın.\n\n* İşlevi devre dışı bırakmak için 2\'ye basın.</string>
 	<string name="key_hold_key">(basılı tut)</string>
@@ -221,4 +225,9 @@
 	<string name="pref_drag_resize">Sürükleyerek yeniden boyutlandır</string>
 	<string name="function_undo">Geri al (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Alt boşluğu yeniden hesapla</string>
+	<string name="fn_key_order_column_2">Sütun 2</string>
+	<string name="fn_key_order_error_wrong_key_count">Her sütunda tam olarak 4 tuş olmalıdır.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Yalnızca 1–8 arası tuş kodlarına izin verilir.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Bir tuş her iki sütuna da yerleştirilemez.</string>
+	<string name="fn_key_order_column_1">Sütun 1</string>
 </resources>

app/src/main/res/values-uk/strings.xml

@@ -21,6 +21,7 @@
 	<string name="pref_category_abc_mode">Режим АБВ</string>
 	<string name="pref_category_custom_words">Додані слова</string>
 	<string name="pref_category_delete_words">Видалити додані слова</string>
+	<string name="pref_category_fn_key_order">Порядок функціональних клавіш</string>
 	<string name="pref_category_hacks">Сумістність</string>
 	<string name="pref_category_appearance">Зовнішній вигляд</string>
 	<string name="pref_category_predictive_mode">Предиктивний режим</string>
@@ -210,7 +211,7 @@
 	<string name="punctuation_order_save_error">Не вдалося зберегти порядок символів.</string>
 	<string name="punctuation_order_sentence">Порядок символів на клавіші 1</string>
 	<string name="punctuation_order_special">Порядок символів на клавіші 0</string>
-	<string name="punctuation_order_reset_defaults">Відновити початковий порядок</string>
+	<string name="restore_default_order">Відновити початковий порядок</string>
 	<string name="language">Мова</string>
 	<string name="punctuation_order_save">Зберегти порядок</string>
 	<string name="punctuation_order_forbidden_char">Заборонений символ:%1$s</string>
@@ -221,10 +222,18 @@
 	<string name="pref_numpad_shape_v">V-подібна</string>
 	<string name="pref_arrow_keys_visible">Клавіші зі стрілками</string>
 	<string name="donate_hold_to_open">Натисніть і утримуйте, щоб відкрити в браузері.</string>
+	<string name="fn_key_order_error_duplicate_key">Повторювані клавіші не дозволені.</string>
+	<string name="fn_key_order_legend">Умовні позначення:</string>
+	<string name="fn_key_order_preview_tip">Підказка: Після зміни порядку клавіш у стовпці 1, натисніть на стовпець 2, щоб одразу побачити результат (або навпаки).</string>
 	<string name="function_already_assigned">\"%1$s\" tuşu zaten \"%2$s\" işlevine atanmış. Onu \"%3$s\" işlevine atamak ister misiniz?</string>
 	<string name="function_assign_instructions">* Натисніть або утримуйте клавішу, щоб призначити її функції «%1$s».\n\n* Натисніть 0, щоб скасувати.\n\n* Натисніть 2, щоб вимкнути функцію.</string>
 	<string name="pref_allow_composing_text">Показувати текст під час введення</string>
 	<string name="pref_drag_resize">Змінювати розмір перетягуванням</string>
 	<string name="function_undo">Скасувати (Undo)</string>
 	<string name="pref_hack_precalculate_navbar_height">Перерахувати нижній відступ</string>
+	<string name="fn_key_order_column_2">Стовпець 2</string>
+	<string name="fn_key_order_error_wrong_key_count">У кожному стовпці має бути рівно 4 клавіші.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Дозволено лише коди клавіш від 1 до 8.</string>
+	<string name="fn_key_order_error_key_on_both_sides">Одна клавіша не може бути в обох стовпцях.</string>
+	<string name="fn_key_order_column_1">Стовпець 1</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -8,6 +8,7 @@
 	<string name="english_only" translatable="false">English only</string>
 	<string name="loading">Loading…</string>
 	<string name="language">Language</string>
+	<string name="restore_default_order">Restore Default Order</string>
 	<string name="search_results">Search Results</string>
 	<string name="search_results_void">No results.</string>
 
@@ -34,6 +35,7 @@
 	<string name="pref_category_debug_options" translatable="false">Debug Options</string>
 	<string name="pref_category_delete_words">Delete Added Words</string>
 	<string name="pref_category_function_keys">Select Hotkeys</string>
+	<string name="pref_category_fn_key_order">Function Key Order</string>
 	<string name="pref_category_hacks">Compatibility</string>
 	<string name="pref_category_keypad">Keypad</string>
 	<string name="pref_category_predictive_mode">Predictive Mode</string>
@@ -160,6 +162,15 @@
 	<string name="donate_summary">If you like %1$s, you could buy me a beer.</string>
 	<string name="donate_hold_to_open">Press and hold to open in the browser.</string>
 
+	<string name="fn_key_order_column_1">Column 1</string>
+	<string name="fn_key_order_column_2">Column 2</string>
+	<string name="fn_key_order_error_wrong_key_count">There must be exactly 4 keys per column.</string>
+	<string name="fn_key_order_error_unsupported_key_code">Only key codes 1–8 are allowed.</string>
+	<string name="fn_key_order_error_key_on_both_sides">One key cannot be placed in both columns.</string>
+	<string name="fn_key_order_error_duplicate_key">No duplicate keys allowed.</string>
+	<string name="fn_key_order_legend">Legend:</string>
+	<string name="fn_key_order_preview_tip">Hint: After reordering the keys in column 1, tap on column 2 to see the result immediately (or vice versa).</string>
+
 	<string name="function_already_assigned">Key \"%1$s\" is already assigned to function \"%2$s\". Do you want to assign it to \"%3$s\"?</string>
 	<string name="function_assign_instructions">* Press or hold a key to assign it to the \"%1$s\" function.\n\n* Press 0 to cancel.\n\n* Press 2 to disable the function.</string>
 	<string name="function_reassign">Reassign</string>
@@ -195,7 +206,6 @@
 	<string name="punctuation_order_mandatory_chars_missing">Missing mandatory characters:%1$s</string>
 	<string name="punctuation_order_forbidden_char">Forbidden character:%1$s</string>
 	<string name="punctuation_order_forbidden_chars">Forbidden characters:%1$s</string>
-	<string name="punctuation_order_reset_defaults">Restore Default Order</string>
 	<string name="punctuation_order_save">Save Order</string>
 	<string name="punctuation_order_save_error">Failed saving the character order.</string>
 	<string name="punctuation_order_sentence">1-key Character Order</string>

app/src/main/res/xml/prefs_screen_appearance.xml

@@ -14,6 +14,11 @@
 		app:key="pref_layout_type"
 		app:title="@string/pref_layout" />
 
+	<Preference
+		app:fragment="io.github.sspanak.tt9.preferences.FnKeyOrderScreen"
+		app:key="screen_fn_key_order"
+		app:title="@string/pref_category_fn_key_order" />
+
 	<SwitchPreferenceCompat
 		app:key="pref_drag_resize"
 		app:title="@string/pref_drag_resize"

app/src/main/res/xml/prefs_screen_fn_key_order.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto"  app:orderingFromXml="true">
+	<io.github.sspanak.tt9.preferences.screens.fnKeyOrder.LeftFnOrderPreference
+		app:key="pref_lfn_key_order"
+		app:title="@string/fn_key_order_column_1"
+		/>
+	<io.github.sspanak.tt9.preferences.screens.fnKeyOrder.RightFnOrderPreference
+		app:key="pref_rfn_key_order"
+		app:title="@string/fn_key_order_column_2"
+		/>
+	<Preference app:key="pref_reset_fn_key_order" app:title="@string/restore_default_order" />
+	<io.github.sspanak.tt9.preferences.screens.fnKeyOrder.FnKeyOrderLegendPreference />
+</PreferenceScreen>

app/src/main/res/xml/prefs_screen_punctuation.xml

@@ -16,7 +16,7 @@
 
 	<Preference
 		android:key="punctuation_order_reset_defaults"
-		android:title="@string/punctuation_order_reset_defaults" />
+		android:title="@string/restore_default_order" />
 
 	<Preference
 		android:key="punctuation_order_save"