diff --git a/src/io/github/sspanak/tt9/ime/KeyPadHandler.java b/src/io/github/sspanak/tt9/ime/KeyPadHandler.java
index dc3f28de..dc590a8f 100644
--- a/src/io/github/sspanak/tt9/ime/KeyPadHandler.java
+++ b/src/io/github/sspanak/tt9/ime/KeyPadHandler.java
@@ -7,6 +7,7 @@ import android.view.View;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 
+import io.github.sspanak.tt9.ime.helpers.Key;
 import io.github.sspanak.tt9.preferences.SettingsStore;
 
 
@@ -160,17 +161,17 @@ abstract class KeyPadHandler extends InputMethodService {
 		}
 
 		// start tracking key hold
-		if (shouldTrackNumPress() || isSpecialFunctionKey(-keyCode)) {
+		if (shouldTrackNumPress() || Key.isHotkey(settings, -keyCode)) {
 			event.startTracking();
 		}
 
-		return isSpecialFunctionKey(keyCode) || isSpecialFunctionKey(-keyCode)
+		return Key.isHotkey(settings, keyCode) || Key.isHotkey(settings, -keyCode)
 			|| keyCode == KeyEvent.KEYCODE_STAR
 			|| keyCode == KeyEvent.KEYCODE_POUND
-			|| (isNumber(keyCode) && shouldTrackNumPress())
+			|| (Key.isNumber(keyCode) && shouldTrackNumPress())
 			|| ((keyCode == KeyEvent.KEYCODE_DPAD_UP || keyCode == KeyEvent.KEYCODE_DPAD_DOWN) && shouldTrackUpDown())
 			|| ((keyCode == KeyEvent.KEYCODE_DPAD_LEFT || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) && shouldTrackLeftRight())
-			|| (mEditing != EDITING_NOSHOW && keyCode == KeyEvent.KEYCODE_DPAD_CENTER);
+			|| (mEditing != EDITING_NOSHOW && Key.isOK(keyCode));
 	}
 
 
@@ -189,7 +190,7 @@ abstract class KeyPadHandler extends InputMethodService {
 		resetKeyRepeat();
 		ignoreNextKeyUp = keyCode;
 
-		if (handleSpecialFunctionKey(keyCode, true)) {
+		if (handleHotkey(keyCode, true)) {
 			return true;
 		}
 
@@ -204,7 +205,7 @@ abstract class KeyPadHandler extends InputMethodService {
 			case KeyEvent.KEYCODE_7:
 			case KeyEvent.KEYCODE_8:
 			case KeyEvent.KEYCODE_9:
-				return onNumber(keyCodeToKeyNumber(keyCode), true, 0);
+				return onNumber(Key.codeToNumber(keyCode), true, 0);
 		}
 
 		ignoreNextKeyUp = 0;
@@ -232,7 +233,7 @@ abstract class KeyPadHandler extends InputMethodService {
 		keyRepeatCounter = (lastKeyCode == keyCode) ? keyRepeatCounter + 1 : 0;
 		lastKeyCode = keyCode;
 
-		if (isNumber(keyCode)) {
+		if (Key.isNumber(keyCode)) {
 			numKeyRepeatCounter = (lastNumKeyCode == keyCode) ? numKeyRepeatCounter + 1 : 0;
 			lastNumKeyCode = keyCode;
 		}
@@ -249,7 +250,7 @@ abstract class KeyPadHandler extends InputMethodService {
 		}
 
 		if (keyCode == KeyEvent.KEYCODE_0) {
-			return onNumber(keyCodeToKeyNumber(keyCode), false, numKeyRepeatCounter);
+			return onNumber(Key.codeToNumber(keyCode), false, numKeyRepeatCounter);
 		}
 
 		// dialer fields are similar to pure numeric fields, but for user convenience, holding "0"
@@ -258,12 +259,15 @@ abstract class KeyPadHandler extends InputMethodService {
 			return false;
 		}
 
-		if (handleSpecialFunctionKey(keyCode, false)) {
+		if (handleHotkey(keyCode, false)) {
 			return true;
 		}
 
-		switch(keyCode) {
-			case KeyEvent.KEYCODE_DPAD_CENTER: return onOK();
+		if (Key.isOK(keyCode)) {
+			return onOK();
+		}
+
+		switch (keyCode) {
 			case KeyEvent.KEYCODE_DPAD_UP: return onUp();
 			case KeyEvent.KEYCODE_DPAD_DOWN: return onDown();
 			case KeyEvent.KEYCODE_DPAD_LEFT: return onLeft();
@@ -277,7 +281,7 @@ abstract class KeyPadHandler extends InputMethodService {
 			case KeyEvent.KEYCODE_7:
 			case KeyEvent.KEYCODE_8:
 			case KeyEvent.KEYCODE_9:
-				return onNumber(keyCodeToKeyNumber(keyCode), false, numKeyRepeatCounter);
+				return onNumber(Key.codeToNumber(keyCode), false, numKeyRepeatCounter);
 			case KeyEvent.KEYCODE_STAR: return onStar();
 			case KeyEvent.KEYCODE_POUND: return onPound();
 		}
@@ -286,7 +290,7 @@ abstract class KeyPadHandler extends InputMethodService {
 	}
 
 
-	private boolean handleSpecialFunctionKey(int keyCode, boolean hold) {
+	private boolean handleHotkey(int keyCode, boolean hold) {
 		if (keyCode == settings.getKeyAddWord() * (hold ? -1 : 1)) {
 			return onKeyAddWord();
 		}
@@ -312,20 +316,6 @@ abstract class KeyPadHandler extends InputMethodService {
 	}
 
 
-	private boolean isNumber(int keyCode) {
-		return keyCode >= KeyEvent.KEYCODE_0 && keyCode <= KeyEvent.KEYCODE_9;
-	}
-
-
-	private boolean isSpecialFunctionKey(int keyCode) {
-		return keyCode == settings.getKeyAddWord()
-			|| keyCode == settings.getKeyBackspace()
-			|| keyCode == settings.getKeyNextLanguage()
-			|| keyCode == settings.getKeyNextInputMode()
-			|| keyCode == settings.getKeyShowSettings();
-	}
-
-
 	protected void resetKeyRepeat() {
 		numKeyRepeatCounter = 0;
 		keyRepeatCounter = 0;
@@ -334,33 +324,6 @@ abstract class KeyPadHandler extends InputMethodService {
 	}
 
 
-	private int keyCodeToKeyNumber(int keyCode) {
-		switch (keyCode) {
-			case KeyEvent.KEYCODE_0:
-				return 0;
-			case KeyEvent.KEYCODE_1:
-				return 1;
-			case KeyEvent.KEYCODE_2:
-				return 2;
-			case KeyEvent.KEYCODE_3:
-				return 3;
-			case KeyEvent.KEYCODE_4:
-				return 4;
-			case KeyEvent.KEYCODE_5:
-				return 5;
-			case KeyEvent.KEYCODE_6:
-				return 6;
-			case KeyEvent.KEYCODE_7:
-				return 7;
-			case KeyEvent.KEYCODE_8:
-				return 8;
-			case KeyEvent.KEYCODE_9:
-				return 9;
-			default:
-				return -1;
-		}
-	}
-
 	// toggle handlers
 	abstract protected boolean shouldTrackUpDown();
 	abstract protected boolean shouldTrackLeftRight();
diff --git a/src/io/github/sspanak/tt9/ime/TraditionalT9.java b/src/io/github/sspanak/tt9/ime/TraditionalT9.java
index 165dacaa..4a005055 100644
--- a/src/io/github/sspanak/tt9/ime/TraditionalT9.java
+++ b/src/io/github/sspanak/tt9/ime/TraditionalT9.java
@@ -14,6 +14,9 @@ import java.util.List;
 
 import io.github.sspanak.tt9.Logger;
 import io.github.sspanak.tt9.db.DictionaryDb;
+import io.github.sspanak.tt9.ime.helpers.InputFieldHelper;
+import io.github.sspanak.tt9.ime.helpers.InputModeValidator;
+import io.github.sspanak.tt9.ime.helpers.TextHelper;
 import io.github.sspanak.tt9.ime.modes.InputMode;
 import io.github.sspanak.tt9.languages.Language;
 import io.github.sspanak.tt9.languages.LanguageCollection;
diff --git a/src/io/github/sspanak/tt9/ime/InputFieldHelper.java b/src/io/github/sspanak/tt9/ime/helpers/InputFieldHelper.java
similarity index 99%
rename from src/io/github/sspanak/tt9/ime/InputFieldHelper.java
rename to src/io/github/sspanak/tt9/ime/helpers/InputFieldHelper.java
index fa0a28fc..07b16f6d 100644
--- a/src/io/github/sspanak/tt9/ime/InputFieldHelper.java
+++ b/src/io/github/sspanak/tt9/ime/helpers/InputFieldHelper.java
@@ -1,4 +1,4 @@
-package io.github.sspanak.tt9.ime;
+package io.github.sspanak.tt9.ime.helpers;
 
 import android.text.InputType;
 import android.view.inputmethod.EditorInfo;
diff --git a/src/io/github/sspanak/tt9/ime/InputModeValidator.java b/src/io/github/sspanak/tt9/ime/helpers/InputModeValidator.java
similarity index 98%
rename from src/io/github/sspanak/tt9/ime/InputModeValidator.java
rename to src/io/github/sspanak/tt9/ime/helpers/InputModeValidator.java
index 5b8ede9e..7f78e77f 100644
--- a/src/io/github/sspanak/tt9/ime/InputModeValidator.java
+++ b/src/io/github/sspanak/tt9/ime/helpers/InputModeValidator.java
@@ -1,4 +1,4 @@
-package io.github.sspanak.tt9.ime;
+package io.github.sspanak.tt9.ime.helpers;
 
 import java.util.ArrayList;
 
diff --git a/src/io/github/sspanak/tt9/ime/helpers/Key.java b/src/io/github/sspanak/tt9/ime/helpers/Key.java
new file mode 100644
index 00000000..cfe515ad
--- /dev/null
+++ b/src/io/github/sspanak/tt9/ime/helpers/Key.java
@@ -0,0 +1,56 @@
+package io.github.sspanak.tt9.ime.helpers;
+
+import android.view.KeyEvent;
+
+import io.github.sspanak.tt9.preferences.SettingsStore;
+
+public class Key {
+	public static boolean isNumber(int keyCode) {
+		return keyCode >= KeyEvent.KEYCODE_0 && keyCode <= KeyEvent.KEYCODE_9;
+	}
+
+
+	public static boolean isHotkey(SettingsStore settings, int keyCode) {
+		return keyCode == settings.getKeyAddWord()
+			|| keyCode == settings.getKeyBackspace()
+			|| keyCode == settings.getKeyNextLanguage()
+			|| keyCode == settings.getKeyNextInputMode()
+			|| keyCode == settings.getKeyShowSettings();
+	}
+
+
+	public static boolean isOK(int keyCode) {
+		return
+			keyCode == KeyEvent.KEYCODE_DPAD_CENTER
+			|| keyCode == KeyEvent.KEYCODE_ENTER
+			|| keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER;
+	}
+
+
+	public static int codeToNumber(int keyCode) {
+		switch (keyCode) {
+			case KeyEvent.KEYCODE_0:
+				return 0;
+			case KeyEvent.KEYCODE_1:
+				return 1;
+			case KeyEvent.KEYCODE_2:
+				return 2;
+			case KeyEvent.KEYCODE_3:
+				return 3;
+			case KeyEvent.KEYCODE_4:
+				return 4;
+			case KeyEvent.KEYCODE_5:
+				return 5;
+			case KeyEvent.KEYCODE_6:
+				return 6;
+			case KeyEvent.KEYCODE_7:
+				return 7;
+			case KeyEvent.KEYCODE_8:
+				return 8;
+			case KeyEvent.KEYCODE_9:
+				return 9;
+			default:
+				return -1;
+		}
+	}
+}
diff --git a/src/io/github/sspanak/tt9/ime/TextHelper.java b/src/io/github/sspanak/tt9/ime/helpers/TextHelper.java
similarity index 96%
rename from src/io/github/sspanak/tt9/ime/TextHelper.java
rename to src/io/github/sspanak/tt9/ime/helpers/TextHelper.java
index 821f4da9..f690a594 100644
--- a/src/io/github/sspanak/tt9/ime/TextHelper.java
+++ b/src/io/github/sspanak/tt9/ime/helpers/TextHelper.java
@@ -1,4 +1,4 @@
-package io.github.sspanak.tt9.ime;
+package io.github.sspanak.tt9.ime.helpers;
 
 import android.graphics.Typeface;
 import android.text.Spannable;
diff --git a/src/io/github/sspanak/tt9/ime/modes/ModePredictive.java b/src/io/github/sspanak/tt9/ime/modes/ModePredictive.java
index af95a1a5..f94e2275 100644
--- a/src/io/github/sspanak/tt9/ime/modes/ModePredictive.java
+++ b/src/io/github/sspanak/tt9/ime/modes/ModePredictive.java
@@ -12,7 +12,7 @@ import java.util.regex.Pattern;
 import io.github.sspanak.tt9.Logger;
 import io.github.sspanak.tt9.db.DictionaryDb;
 import io.github.sspanak.tt9.ime.EmptyDatabaseWarning;
-import io.github.sspanak.tt9.ime.InputFieldHelper;
+import io.github.sspanak.tt9.ime.helpers.InputFieldHelper;
 import io.github.sspanak.tt9.languages.Language;
 import io.github.sspanak.tt9.languages.Punctuation;
 import io.github.sspanak.tt9.preferences.SettingsStore;