diff --git a/color.go b/color.go
deleted file mode 100644
index aa0de37..0000000
--- a/color.go
+++ /dev/null
@@ -1,123 +0,0 @@
-package main
-
-import (
-	"github.com/gdamore/tcell/v2"
-)
-
-var (
-	AllTheme = []string{"Gruvbox", "Nord"}
-	Palette  = []string{"red", "green", "yellow", "blue", "purple", "cyan", "orange"}
-	Themes   = map[string]map[string]tcell.Color{
-		"Gruvbox": {
-			"bg":     tcell.NewHexColor(0x282828),
-			"fg":     tcell.NewHexColor(0xebdbb2),
-			"gray":   tcell.NewHexColor(0x665c54),
-			"red":    tcell.NewHexColor(0xfb4934),
-			"green":  tcell.NewHexColor(0xb8bb26),
-			"yellow": tcell.NewHexColor(0xfabd2f),
-			"blue":   tcell.NewHexColor(0x83a598),
-			"purple": tcell.NewHexColor(0xd3869b),
-			"cyan":   tcell.NewHexColor(0x8ec07c),
-			"orange": tcell.NewHexColor(0xfe8019),
-		},
-		"Nord": {
-			"bg":     tcell.NewHexColor(0x3b4252),
-			"fg":     tcell.NewHexColor(0xeceff4),
-			"gray":   tcell.NewHexColor(0x4c566a),
-			"red":    tcell.NewHexColor(0xbf616a),
-			"green":  tcell.NewHexColor(0xa3be8c),
-			"yellow": tcell.NewHexColor(0xebcb8b),
-			"blue":   tcell.NewHexColor(0x81a1c1),
-			"purple": tcell.NewHexColor(0xb48ead),
-			"cyan":   tcell.NewHexColor(0x8fbcbb),
-			"orange": tcell.NewHexColor(0xd08770),
-		},
-	}
-)
-
-type WindowStyle struct {
-	borderColor string
-}
-
-type Style struct {
-	src             WindowStyle
-	dst             WindowStyle
-	backgroundColor string
-	foregroundColor string
-	selectedColor   string
-	prefixColor     string
-	labelColor      string
-	pressColor      string
-	highLightColor  string
-	Theme           string
-	Transparent     bool
-}
-
-func NewStyle() *Style {
-	return &Style{
-		backgroundColor: "bg",
-		foregroundColor: "fg",
-		selectedColor:   "gray",
-		prefixColor:     "cyan",
-		labelColor:      "yellow",
-		pressColor:      "purple",
-		highLightColor:  "orange",
-	}
-}
-
-func (s Style) BackgroundColor() tcell.Color {
-	if s.Transparent {
-		return tcell.ColorDefault
-	}
-	return Themes[s.Theme][s.backgroundColor]
-}
-
-func (s Style) ForegroundColor() tcell.Color {
-	return Themes[s.Theme][s.foregroundColor]
-}
-
-func (s Style) SelectedColor() tcell.Color {
-	return Themes[s.Theme][s.selectedColor]
-}
-
-func (s Style) PrefixColor() tcell.Color {
-	return Themes[s.Theme][s.prefixColor]
-}
-
-func (s Style) LabelColor() tcell.Color {
-	return Themes[s.Theme][s.labelColor]
-}
-
-func (s Style) PressColor() tcell.Color {
-	return Themes[s.Theme][s.pressColor]
-}
-
-func (s Style) HighLightColor() tcell.Color {
-	return Themes[s.Theme][s.highLightColor]
-}
-
-func (s Style) SrcBorderColor() tcell.Color {
-	return Themes[s.Theme][s.src.borderColor]
-}
-
-func (s Style) DstBorderColor() tcell.Color {
-	return Themes[s.Theme][s.dst.borderColor]
-}
-
-func (s Style) SrcBorderStr() string {
-	return s.src.borderColor
-}
-
-func (s Style) DstBorderStr() string {
-	return s.dst.borderColor
-}
-
-func (s *Style) SetSrcBorderColor(color string) *Style {
-	s.src.borderColor = color
-	return s
-}
-
-func (s *Style) SetDstBorderColor(color string) *Style {
-	s.dst.borderColor = color
-	return s
-}
diff --git a/config.go b/config.go
index 66129f4..351f65b 100644
--- a/config.go
+++ b/config.go
@@ -33,8 +33,8 @@ func configInit() {
 	}
 
 	// setup
-	translator.srcLang = config.GetString("source.language")
-	translator.dstLang = config.GetString("destination.language")
+	translator.SrcLang = config.GetString("source.language")
+	translator.DstLang = config.GetString("destination.language")
 	style.Theme = config.GetString("theme")
 	style.Transparent = config.GetBool("transparent")
 	style.SetSrcBorderColor(config.GetString("source.borderColor")).
@@ -53,17 +53,17 @@ func updateConfig() {
 		changed = true
 		config.Set("transparent", style.Transparent)
 	}
-	if config.GetString("source.language") != translator.srcLang {
+	if config.GetString("source.language") != translator.SrcLang {
 		changed = true
-		config.Set("source.language", translator.srcLang)
+		config.Set("source.language", translator.SrcLang)
 	}
 	if config.GetString("source.borderColor") != style.SrcBorderStr() {
 		changed = true
 		config.Set("source.borderColor", style.SrcBorderStr())
 	}
-	if config.GetString("destination.language") != translator.dstLang {
+	if config.GetString("destination.language") != translator.DstLang {
 		changed = true
-		config.Set("destination.language", translator.dstLang)
+		config.Set("destination.language", translator.DstLang)
 	}
 	if config.GetString("destination.borderColor") != style.DstBorderStr() {
 		changed = true
diff --git a/internal/color/color.go b/internal/color/color.go
new file mode 100644
index 0000000..aeee67b
--- /dev/null
+++ b/internal/color/color.go
@@ -0,0 +1,36 @@
+package color
+
+import (
+	"github.com/gdamore/tcell/v2"
+)
+
+var (
+	AllTheme = []string{"Gruvbox", "Nord"}
+	Palette  = []string{"red", "green", "yellow", "blue", "purple", "cyan", "orange"}
+	themes   = map[string]map[string]tcell.Color{
+		"Gruvbox": {
+			"bg":     tcell.NewHexColor(0x282828),
+			"fg":     tcell.NewHexColor(0xebdbb2),
+			"gray":   tcell.NewHexColor(0x665c54),
+			"red":    tcell.NewHexColor(0xfb4934),
+			"green":  tcell.NewHexColor(0xb8bb26),
+			"yellow": tcell.NewHexColor(0xfabd2f),
+			"blue":   tcell.NewHexColor(0x83a598),
+			"purple": tcell.NewHexColor(0xd3869b),
+			"cyan":   tcell.NewHexColor(0x8ec07c),
+			"orange": tcell.NewHexColor(0xfe8019),
+		},
+		"Nord": {
+			"bg":     tcell.NewHexColor(0x3b4252),
+			"fg":     tcell.NewHexColor(0xeceff4),
+			"gray":   tcell.NewHexColor(0x4c566a),
+			"red":    tcell.NewHexColor(0xbf616a),
+			"green":  tcell.NewHexColor(0xa3be8c),
+			"yellow": tcell.NewHexColor(0xebcb8b),
+			"blue":   tcell.NewHexColor(0x81a1c1),
+			"purple": tcell.NewHexColor(0xb48ead),
+			"cyan":   tcell.NewHexColor(0x8fbcbb),
+			"orange": tcell.NewHexColor(0xd08770),
+		},
+	}
+)
diff --git a/internal/color/control.go b/internal/color/control.go
new file mode 100644
index 0000000..b793d05
--- /dev/null
+++ b/internal/color/control.go
@@ -0,0 +1,92 @@
+package color
+
+import (
+	"github.com/gdamore/tcell/v2"
+)
+
+type windowStyle struct {
+	borderColor string
+}
+
+type Style struct {
+	src             windowStyle
+	dst             windowStyle
+	backgroundColor string
+	foregroundColor string
+	selectedColor   string
+	prefixColor     string
+	labelColor      string
+	pressColor      string
+	highLightColor  string
+	Theme           string
+	Transparent     bool
+}
+
+func NewStyle() *Style {
+	return &Style{
+		backgroundColor: "bg",
+		foregroundColor: "fg",
+		selectedColor:   "gray",
+		prefixColor:     "cyan",
+		labelColor:      "yellow",
+		pressColor:      "purple",
+		highLightColor:  "orange",
+	}
+}
+
+func (s Style) BackgroundColor() tcell.Color {
+	if s.Transparent {
+		return tcell.ColorDefault
+	}
+	return themes[s.Theme][s.backgroundColor]
+}
+
+func (s Style) ForegroundColor() tcell.Color {
+	return themes[s.Theme][s.foregroundColor]
+}
+
+func (s Style) SelectedColor() tcell.Color {
+	return themes[s.Theme][s.selectedColor]
+}
+
+func (s Style) PrefixColor() tcell.Color {
+	return themes[s.Theme][s.prefixColor]
+}
+
+func (s Style) LabelColor() tcell.Color {
+	return themes[s.Theme][s.labelColor]
+}
+
+func (s Style) PressColor() tcell.Color {
+	return themes[s.Theme][s.pressColor]
+}
+
+func (s Style) HighLightColor() tcell.Color {
+	return themes[s.Theme][s.highLightColor]
+}
+
+func (s Style) SrcBorderColor() tcell.Color {
+	return themes[s.Theme][s.src.borderColor]
+}
+
+func (s Style) DstBorderColor() tcell.Color {
+	return themes[s.Theme][s.dst.borderColor]
+}
+
+func (s Style) SrcBorderStr() string {
+	return s.src.borderColor
+}
+
+func (s Style) DstBorderStr() string {
+	return s.dst.borderColor
+}
+
+func (s *Style) SetSrcBorderColor(color string) *Style {
+	s.src.borderColor = color
+	return s
+}
+
+func (s *Style) SetDstBorderColor(color string) *Style {
+	s.dst.borderColor = color
+	return s
+}
diff --git a/language.go b/internal/translate/language.go
similarity index 99%
rename from language.go
rename to internal/translate/language.go
index 69b6ae8..94cb10f 100644
--- a/language.go
+++ b/internal/translate/language.go
@@ -1,4 +1,4 @@
-package main
+package translate
 
 // https://cloud.google.com/translate/docs/languages
 var (
diff --git a/internal/translate/lock.go b/internal/translate/lock.go
new file mode 100644
index 0000000..3f5973d
--- /dev/null
+++ b/internal/translate/lock.go
@@ -0,0 +1,27 @@
+package translate
+
+type Lock struct {
+	Stop        bool
+	threadCount int8
+}
+
+func NewLock() *Lock {
+	return &Lock{
+		Stop:        true,
+		threadCount: 0,
+	}
+}
+
+func (l *Lock) Available() bool {
+	return l.Stop && l.threadCount == 0
+}
+
+func (l *Lock) Acquire() {
+	l.Stop = false
+	l.threadCount++
+}
+
+func (l *Lock) Release() {
+	l.Stop = true
+	l.threadCount--
+}
diff --git a/translator.go b/internal/translate/translator.go
similarity index 72%
rename from translator.go
rename to internal/translate/translator.go
index 03eb863..50aef58 100644
--- a/translator.go
+++ b/internal/translate/translator.go
@@ -1,4 +1,4 @@
-package main
+package translate
 
 import (
 	"encoding/json"
@@ -17,41 +17,15 @@ const (
 	soundURL = "https://translate.google.com.vn/translate_tts?ie=UTF-8&q=%s&tl=%s&client=tw-ob"
 )
 
-type Lock struct {
-	stop        bool
-	threadCount int8
-}
-
-func NewLock() *Lock {
-	return &Lock{
-		stop:        true,
-		threadCount: 0,
-	}
-}
-
-func (l *Lock) Available() bool {
-	return l.stop && l.threadCount == 0
-}
-
-func (l *Lock) Acquire() {
-	l.stop = false
-	l.threadCount++
-}
-
-func (l *Lock) Release() {
-	l.stop = true
-	l.threadCount--
-}
-
 type Translator struct {
-	srcLang   string
-	dstLang   string
-	soundLock *Lock
+	SrcLang   string
+	DstLang   string
+	SoundLock *Lock
 }
 
 func NewTranslator() *Translator {
 	return &Translator{
-		soundLock: NewLock(),
+		SoundLock: NewLock(),
 	}
 }
 
@@ -61,8 +35,8 @@ func (t *Translator) Translate(message string) (string, error) {
 
 	urlStr := fmt.Sprintf(
 		textURL,
-		LangCode[t.srcLang],
-		LangCode[t.dstLang],
+		LangCode[t.SrcLang],
+		LangCode[t.DstLang],
 		url.QueryEscape(message),
 	)
 	res, err := http.Get(urlStr)
@@ -98,35 +72,35 @@ func (t *Translator) PlaySound(lang string, message string) error {
 	)
 	res, err := http.Get(urlStr)
 	if err != nil {
-		t.soundLock.Release()
+		t.SoundLock.Release()
 		return err
 	}
 	decoder, err := mp3.NewDecoder(res.Body)
 	if err != nil {
-		t.soundLock.Release()
+		t.SoundLock.Release()
 		return err
 	}
 	otoCtx, readyChan, err := oto.NewContext(decoder.SampleRate(), 2, 2)
 	if err != nil {
-		t.soundLock.Release()
+		t.SoundLock.Release()
 		return err
 	}
 	<-readyChan
 	player := otoCtx.NewPlayer(decoder)
 	player.Play()
 	for player.IsPlaying() {
-		if t.soundLock.stop {
-			t.soundLock.Release()
+		if t.SoundLock.Stop {
+			t.SoundLock.Release()
 			return nil
 		} else {
 			time.Sleep(time.Millisecond)
 		}
 	}
 	if err = player.Close(); err != nil {
-		t.soundLock.Release()
+		t.SoundLock.Release()
 		return err
 	}
 
-	t.soundLock.Release()
+	t.SoundLock.Release()
 	return nil
 }
diff --git a/internal/ui/cycle.go b/internal/ui/cycle.go
new file mode 100644
index 0000000..f0c9b2b
--- /dev/null
+++ b/internal/ui/cycle.go
@@ -0,0 +1,37 @@
+package ui
+
+import (
+	"github.com/rivo/tview"
+)
+
+type UICycle struct {
+	widget []tview.Primitive
+	index  int
+	len    int
+}
+
+func NewUICycle(widgets ...tview.Primitive) *UICycle {
+	var w []tview.Primitive
+
+	for _, widget := range widgets {
+		w = append(w, widget)
+	}
+
+	return &UICycle{
+		widget: w,
+		index:  0,
+		len:    len(w),
+	}
+}
+
+func (ui *UICycle) Increase() {
+	ui.index = (ui.index + 1) % ui.len
+}
+
+func (ui *UICycle) Decrease() {
+	ui.index = ((ui.index-1)%ui.len + ui.len) % ui.len
+}
+
+func (ui *UICycle) GetCurrentUI() tview.Primitive {
+	return ui.widget[ui.index]
+}
diff --git a/main.go b/main.go
index ab2c5af..96ff902 100644
--- a/main.go
+++ b/main.go
@@ -3,27 +3,30 @@ package main
 import (
 	"github.com/rivo/tview"
 	"github.com/spf13/viper"
+	"gtt/internal/color"
+	"gtt/internal/translate"
+	"gtt/internal/ui"
 )
 
 var (
 	// Translate
-	translator = NewTranslator()
+	translator = translate.NewTranslator()
 	// UI
 	app                 = tview.NewApplication()
 	srcInput            = tview.NewTextArea()
 	dstOutput           = tview.NewTextView()
 	srcLangDropDown     = tview.NewDropDown()
 	dstLangDropDown     = tview.NewDropDown()
-	langCycle           = NewUICycle(srcLangDropDown, dstLangDropDown)
+	langCycle           = ui.NewUICycle(srcLangDropDown, dstLangDropDown)
 	themeDropDown       = tview.NewDropDown()
 	transparentDropDown = tview.NewDropDown()
 	srcBorderDropDown   = tview.NewDropDown()
 	dstBorderDropDown   = tview.NewDropDown()
-	styleCycle          = NewUICycle(themeDropDown, transparentDropDown, srcBorderDropDown, dstBorderDropDown)
+	styleCycle          = ui.NewUICycle(themeDropDown, transparentDropDown, srcBorderDropDown, dstBorderDropDown)
 	keyMapMenu          = tview.NewTextView()
 	langButton          = tview.NewButton("(1)Language")
 	styleButton         = tview.NewButton("(2)Style")
-	keyMapButton          = tview.NewButton("(3)KeyMap")
+	keyMapButton        = tview.NewButton("(3)KeyMap")
 	translateWindow     = tview.NewFlex()
 	langWindow          = tview.NewFlex()
 	styleWindow         = tview.NewFlex()
@@ -31,7 +34,7 @@ var (
 	mainPage            = tview.NewPages()
 	// settings
 	config = viper.New()
-	style  = NewStyle()
+	style  = color.NewStyle()
 )
 
 func main() {
@@ -49,5 +52,6 @@ func main() {
 		panic(err)
 	}
 
+	// Check if config need to update
 	defer updateConfig()
 }
diff --git a/ui.go b/ui.go
index 54f4993..ebd33bf 100644
--- a/ui.go
+++ b/ui.go
@@ -4,41 +4,11 @@ import (
 	"fmt"
 	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
+	"gtt/internal/color"
+	"gtt/internal/translate"
 	"strconv"
 )
 
-type UICycle struct {
-	widget []tview.Primitive
-	index  int
-	len    int
-}
-
-func NewUICycle(widgets ...tview.Primitive) *UICycle {
-	var w []tview.Primitive
-
-	for _, widget := range widgets {
-		w = append(w, widget)
-	}
-
-	return &UICycle{
-		widget: w,
-		index:  0,
-		len:    len(w),
-	}
-}
-
-func (ui *UICycle) Increase() {
-	ui.index = (ui.index + 1) % ui.len
-}
-
-func (ui *UICycle) Decrease() {
-	ui.index = ((ui.index-1)%ui.len + ui.len) % ui.len
-}
-
-func (ui *UICycle) GetCurrentUI() tview.Primitive {
-	return ui.widget[ui.index]
-}
-
 const (
 	keyMapText string = `[#%[1]s]<C-c>[-]
 	Exit program.
@@ -197,12 +167,12 @@ func updateAllColor() {
 
 // Update title and option
 func updateTitle() {
-	srcInput.SetTitle(translator.srcLang)
-	dstOutput.SetTitle(translator.dstLang)
-	srcLangDropDown.SetCurrentOption(IndexOf(translator.srcLang, Lang))
-	srcLangDropDown.SetTitle(translator.srcLang)
-	dstLangDropDown.SetCurrentOption(IndexOf(translator.dstLang, Lang))
-	dstLangDropDown.SetTitle(translator.dstLang)
+	srcInput.SetTitle(translator.SrcLang)
+	dstOutput.SetTitle(translator.DstLang)
+	srcLangDropDown.SetCurrentOption(IndexOf(translator.SrcLang, translate.Lang))
+	srcLangDropDown.SetTitle(translator.SrcLang)
+	dstLangDropDown.SetCurrentOption(IndexOf(translator.DstLang, translate.Lang))
+	dstLangDropDown.SetTitle(translator.DstLang)
 }
 
 func attachButton() *tview.Flex {
@@ -223,25 +193,25 @@ func uiInit() {
 
 	// dropdown
 	srcLangDropDown.SetBorder(true)
-	srcLangDropDown.SetOptions(Lang, nil)
+	srcLangDropDown.SetOptions(translate.Lang, nil)
 	dstLangDropDown.SetBorder(true)
-	dstLangDropDown.SetOptions(Lang, nil)
+	dstLangDropDown.SetOptions(translate.Lang, nil)
 	themeDropDown.SetLabel("Theme: ").
-		SetOptions(AllTheme, nil).
-		SetCurrentOption(IndexOf(style.Theme, AllTheme))
+		SetOptions(color.AllTheme, nil).
+		SetCurrentOption(IndexOf(style.Theme, color.AllTheme))
 	transparentDropDown.SetLabel("Transparent: ").
 		SetOptions([]string{"true", "false"}, nil).
 		SetCurrentOption(
 			IndexOf(strconv.FormatBool(style.Transparent),
 				[]string{"true", "false"}))
 	srcBorderDropDown.SetLabel("Border Color: ").
-		SetOptions(Palette, nil).
-		SetCurrentOption(IndexOf(style.SrcBorderStr(), Palette))
+		SetOptions(color.Palette, nil).
+		SetCurrentOption(IndexOf(style.SrcBorderStr(), color.Palette))
 	srcBorderDropDown.SetBorder(true).
 		SetTitle("Source")
 	dstBorderDropDown.SetLabel("Border Color: ").
-		SetOptions(Palette, nil).
-		SetCurrentOption(IndexOf(style.DstBorderStr(), Palette))
+		SetOptions(color.Palette, nil).
+		SetCurrentOption(IndexOf(style.DstBorderStr(), color.Palette))
 	dstBorderDropDown.SetBorder(true).
 		SetTitle("Destination")
 
@@ -303,19 +273,19 @@ func uiInit() {
 
 	// handler
 	mainPage.SetInputCapture(mainPageHandler)
+	translateWindow.SetInputCapture(translatePageHandler)
 	langWindow.SetInputCapture(popOutWindowHandler)
 	styleWindow.SetInputCapture(popOutWindowHandler)
 	keyMapWindow.SetInputCapture(popOutWindowHandler)
-	translateWindow.SetInputCapture(translatePageHandler)
 	srcLangDropDown.SetDoneFunc(langDropDownHandler).
 		SetSelectedFunc(func(text string, index int) {
-			translator.srcLang = text
+			translator.SrcLang = text
 			srcInput.SetTitle(text)
 			srcLangDropDown.SetTitle(text)
 		})
 	dstLangDropDown.SetDoneFunc(langDropDownHandler).
 		SetSelectedFunc(func(text string, index int) {
-			translator.dstLang = text
+			translator.DstLang = text
 			dstOutput.SetTitle(text)
 			dstLangDropDown.SetTitle(text)
 		})
@@ -380,29 +350,6 @@ func mainPageHandler(event *tcell.EventKey) *tcell.EventKey {
 	return event
 }
 
-func popOutWindowHandler(event *tcell.EventKey) *tcell.EventKey {
-	ch := event.Rune()
-
-	switch ch {
-	case '1':
-		mainPage.HidePage("stylePage")
-		mainPage.HidePage("keyMapPage")
-		mainPage.ShowPage("langPage")
-		app.SetFocus(langCycle.GetCurrentUI())
-	case '2':
-		mainPage.HidePage("langPage")
-		mainPage.HidePage("keyMapPage")
-		mainPage.ShowPage("stylePage")
-		app.SetFocus(styleCycle.GetCurrentUI())
-	case '3':
-		mainPage.HidePage("langPage")
-		mainPage.HidePage("stylePage")
-		mainPage.ShowPage("keyMapPage")
-	}
-
-	return event
-}
-
 func translatePageHandler(event *tcell.EventKey) *tcell.EventKey {
 	key := event.Key()
 
@@ -424,7 +371,7 @@ func translatePageHandler(event *tcell.EventKey) *tcell.EventKey {
 	case tcell.KeyCtrlQ:
 		srcInput.SetText("", true)
 	case tcell.KeyCtrlS:
-		translator.srcLang, translator.dstLang = translator.dstLang, translator.srcLang
+		translator.SrcLang, translator.DstLang = translator.DstLang, translator.SrcLang
 		updateTitle()
 		srcText := srcInput.GetText()
 		dstText := dstOutput.GetText(false)
@@ -437,13 +384,13 @@ func translatePageHandler(event *tcell.EventKey) *tcell.EventKey {
 		dstOutput.SetText(srcText)
 	case tcell.KeyCtrlO:
 		// Play source sound
-		if translator.soundLock.Available() {
+		if translator.SoundLock.Available() {
 			message := srcInput.GetText()
 			if len(message) > 0 {
 				// Only play when message exist
-				translator.soundLock.Acquire()
+				translator.SoundLock.Acquire()
 				go func() {
-					err := translator.PlaySound(translator.srcLang, message)
+					err := translator.PlaySound(translator.SrcLang, message)
 					if err != nil {
 						srcInput.SetText(err.Error(), true)
 					}
@@ -453,13 +400,13 @@ func translatePageHandler(event *tcell.EventKey) *tcell.EventKey {
 		}
 	case tcell.KeyCtrlP:
 		// Play destination sound
-		if translator.soundLock.Available() {
+		if translator.SoundLock.Available() {
 			message := dstOutput.GetText(false)
 			if len(message) > 0 {
 				// Only play when message exist
-				translator.soundLock.Acquire()
+				translator.SoundLock.Acquire()
 				go func() {
-					err := translator.PlaySound(translator.dstLang, message)
+					err := translator.PlaySound(translator.DstLang, message)
 					if err != nil {
 						dstOutput.SetText(err.Error())
 					}
@@ -468,7 +415,30 @@ func translatePageHandler(event *tcell.EventKey) *tcell.EventKey {
 		}
 	case tcell.KeyCtrlX:
 		// Stop play sound
-		translator.soundLock.stop = true
+		translator.SoundLock.Stop = true
+	}
+
+	return event
+}
+
+func popOutWindowHandler(event *tcell.EventKey) *tcell.EventKey {
+	ch := event.Rune()
+
+	switch ch {
+	case '1':
+		mainPage.HidePage("stylePage")
+		mainPage.HidePage("keyMapPage")
+		mainPage.ShowPage("langPage")
+		app.SetFocus(langCycle.GetCurrentUI())
+	case '2':
+		mainPage.HidePage("langPage")
+		mainPage.HidePage("keyMapPage")
+		mainPage.ShowPage("stylePage")
+		app.SetFocus(styleCycle.GetCurrentUI())
+	case '3':
+		mainPage.HidePage("langPage")
+		mainPage.HidePage("stylePage")
+		mainPage.ShowPage("keyMapPage")
 	}
 
 	return event