diff --git a/main.py b/main.py
index 58e3fd49..6fa4987e 100644
--- a/main.py
+++ b/main.py
@@ -122,8 +122,8 @@ def setTargetLanguageAndCountry(select):
     config.TARGET_COUNTRY = country
     config.CHOICE_TRANSLATOR = model.findTranslationEngine(config.SOURCE_LANGUAGE, config.TARGET_LANGUAGE)
 
-def callbackSelectedTabNo1():
-    config.SELECTED_TAB_NO = "1"
+def callbackSelectedLanguagePresetTab(selected_tab_no):
+    config.SELECTED_TAB_NO = selected_tab_no
     view.updateGuiVariableByPresetTabNo(config.SELECTED_TAB_NO)
     languages = config.SELECTED_TAB_YOUR_LANGUAGES
     select = languages[config.SELECTED_TAB_NO]
@@ -137,37 +137,6 @@ def callbackSelectedTabNo1():
     config.TARGET_COUNTRY = country
     config.CHOICE_TRANSLATOR = model.findTranslationEngine(config.SOURCE_LANGUAGE, config.TARGET_LANGUAGE)
 
-def callbackSelectedTabNo2():
-    config.SELECTED_TAB_NO = "2"
-    view.updateGuiVariableByPresetTabNo(config.SELECTED_TAB_NO)
-    languages = config.SELECTED_TAB_YOUR_LANGUAGES
-    select = languages[config.SELECTED_TAB_NO]
-    language, country = model.getLanguageAndCountry(select)
-    config.SOURCE_LANGUAGE = language
-    config.SOURCE_COUNTRY = country
-    languages = config.SELECTED_TAB_TARGET_LANGUAGES
-    select = languages[config.SELECTED_TAB_NO]
-    language, country = model.getLanguageAndCountry(select)
-    config.TARGET_LANGUAGE = language
-    config.TARGET_COUNTRY = country
-    config.CHOICE_TRANSLATOR = model.findTranslationEngine(config.SOURCE_LANGUAGE, config.TARGET_LANGUAGE)
-
-def callbackSelectedTabNo3():
-    config.SELECTED_TAB_NO = "3"
-    view.updateGuiVariableByPresetTabNo(config.SELECTED_TAB_NO)
-    languages = config.SELECTED_TAB_YOUR_LANGUAGES
-    select = languages[config.SELECTED_TAB_NO]
-    language, country = model.getLanguageAndCountry(select)
-    config.SOURCE_LANGUAGE = language
-    config.SOURCE_COUNTRY = country
-    languages = config.SELECTED_TAB_TARGET_LANGUAGES
-    select = languages[config.SELECTED_TAB_NO]
-    language, country = model.getLanguageAndCountry(select)
-    config.TARGET_LANGUAGE = language
-    config.TARGET_COUNTRY = country
-    config.CHOICE_TRANSLATOR = model.findTranslationEngine(config.SOURCE_LANGUAGE, config.TARGET_LANGUAGE)
-
-
 # command func
 def callbackToggleTranslation(is_turned_on):
     config.ENABLE_TRANSLATION = is_turned_on
@@ -404,9 +373,7 @@ view.register(
         "callback_target_language": setTargetLanguageAndCountry,
         "values": model.getListLanguageAndCountry(),
 
-        "callback_selected_tab_no_1": callbackSelectedTabNo1,
-        "callback_selected_tab_no_2": callbackSelectedTabNo2,
-        "callback_selected_tab_no_3": callbackSelectedTabNo3,
+        "callback_selected_language_preset_tab": callbackSelectedLanguagePresetTab,
     },
 
     entry_message_box_commands={
diff --git a/view.py b/view.py
index 1c0c7abc..0f425c36 100644
--- a/view.py
+++ b/view.py
@@ -43,9 +43,8 @@ class View():
             CALLBACK_TOGGLE_TRANSCRIPTION_SEND=None,
             CALLBACK_TOGGLE_TRANSCRIPTION_RECEIVE=None,
             CALLBACK_TOGGLE_FOREGROUND=None,
-            # CALLBACK_SELECTED_TAB_NO_1=None,
-            # CALLBACK_SELECTED_TAB_NO_2=None,
-            # CALLBACK_SELECTED_TAB_NO_3=None,
+
+            CALLBACK_SELECTED_LANGUAGE_PRESET_TAB=None,
 
 
 
@@ -215,9 +214,7 @@ class View():
         vrct_gui.sqls__optionmenu_target_language.configure(command=language_presets["callback_target_language"])
         vrct_gui.sqls__optionmenu_target_language.configure(variable=StringVar(value=config.SELECTED_TAB_TARGET_LANGUAGES[config.SELECTED_TAB_NO]))
 
-        vrct_gui.CALLBACK_SELECTED_TAB_NO_1 = language_presets["callback_selected_tab_no_1"]
-        vrct_gui.CALLBACK_SELECTED_TAB_NO_2 = language_presets["callback_selected_tab_no_2"]
-        vrct_gui.CALLBACK_SELECTED_TAB_NO_3 = language_presets["callback_selected_tab_no_3"]
+        vrct_gui.CALLBACK_SELECTED_LANGUAGE_PRESET_TAB = language_presets["callback_selected_language_preset_tab"]
         vrct_gui.setDefaultActiveLanguagePresetTab(tab_no=config.SELECTED_TAB_NO)
 
 
diff --git a/vrct_gui/main_window/widgets/create_sidebar.py b/vrct_gui/main_window/widgets/create_sidebar.py
index 9396d336..bbf3fb8d 100644
--- a/vrct_gui/main_window/widgets/create_sidebar.py
+++ b/vrct_gui/main_window/widgets/create_sidebar.py
@@ -99,34 +99,21 @@ def createSidebar(settings, main_window):
 
 
 
-
-
-
-
     def switchToPreset1(e):
         print("1")
-        if callable(main_window.CALLBACK_SELECTED_TAB_NO_1) is True:
-            main_window.CALLBACK_SELECTED_TAB_NO_1()
-        # main_window.YOUR_LANGUAGE = "Japanese\n(Japan)"
-        # main_window.TARGET_LANGUAGE = "English\n(United States)"
+        callFunctionIfCallable(main_window.CALLBACK_SELECTED_LANGUAGE_PRESET_TAB, "1")
         target_active_widget = getattr(main_window, "sqls__presets_button_1")
         switchPresetTabFunction(target_active_widget)
 
     def switchToPreset2(e):
         print("2")
-        if callable(main_window.CALLBACK_SELECTED_TAB_NO_2) is True:
-            main_window.CALLBACK_SELECTED_TAB_NO_2()
-        # main_window.YOUR_LANGUAGE = "English\n(United States)"
-        # main_window.TARGET_LANGUAGE = "Japanese\n(Japan)"
+        callFunctionIfCallable(main_window.CALLBACK_SELECTED_LANGUAGE_PRESET_TAB, "2")
         target_active_widget = getattr(main_window, "sqls__presets_button_2")
         switchPresetTabFunction(target_active_widget)
 
     def switchToPreset3(e):
         print("3")
-        if callable(main_window.CALLBACK_SELECTED_TAB_NO_3) is True:
-            main_window.CALLBACK_SELECTED_TAB_NO_3()
-        # main_window.YOUR_LANGUAGE = "Japanese\n(Japan)"
-        # main_window.TARGET_LANGUAGE = "Chinese, Cantonese\n(Traditional Hong Kong)"
+        callFunctionIfCallable(main_window.CALLBACK_SELECTED_LANGUAGE_PRESET_TAB, "3")
         target_active_widget = getattr(main_window, "sqls__presets_button_3")
         switchPresetTabFunction(target_active_widget)
 
diff --git a/vrct_gui/vrct_gui.py b/vrct_gui/vrct_gui.py
index 5874b318..f0871ace 100644
--- a/vrct_gui/vrct_gui.py
+++ b/vrct_gui/vrct_gui.py
@@ -20,14 +20,6 @@ class VRCT_GUI(CTk):
         self.YOUR_LANGUAGE = "Japanese\n(Japan)"
         self.TARGET_LANGUAGE = "English\n(United States)"
 
-        # self.CALLBACK_TOGGLE_TRANSLATION = None
-        # self.CALLBACK_TOGGLE_TRANSCRIPTION_SEND = None
-        # self.CALLBACK_TOGGLE_TRANSCRIPTION_RECEIVE = None
-        # self.CALLBACK_TOGGLE_FOREGROUND = None
-        self.CALLBACK_SELECTED_TAB_NO_1 = None
-        self.CALLBACK_SELECTED_TAB_NO_2 = None
-        self.CALLBACK_SELECTED_TAB_NO_3 = None
-
 
     def createGUI(self, settings, view_variable):
         self.settings = settings