diff --git a/BallanceTASEditor/App.xaml.cs b/BallanceTASEditor/App.xaml.cs
index 7742efa..44802ae 100644
--- a/BallanceTASEditor/App.xaml.cs
+++ b/BallanceTASEditor/App.xaml.cs
@@ -40,6 +40,12 @@ namespace BallanceTASEditor {
 
         }
 
+        protected override void OnExit(ExitEventArgs e) {
+            base.OnExit(e);
+
+            GlobalVariable.configManager.Save();
+        }
+
         private void UncatchedErrorHandle(string message, string stackTrace) {
             try {
                 if (!Directory.Exists("./logs"))
diff --git a/BallanceTASEditor/Core/ConfigManager.cs b/BallanceTASEditor/Core/ConfigManager.cs
index b4728bb..da7af6a 100644
--- a/BallanceTASEditor/Core/ConfigManager.cs
+++ b/BallanceTASEditor/Core/ConfigManager.cs
@@ -11,13 +11,13 @@ namespace BallanceTASEditor.Core {
 
         public ConfigManager(string fileName, Dictionary<string, string> defaultValue) {
             _fileName = fileName;
-            _defaultValue = JsonConvert.SerializeObject(defaultValue);
+            _defaultValue = defaultValue;
             
             Configuration = Read();
         }
 
         string _fileName;
-        string _defaultValue;
+        Dictionary<string, string> _defaultValue;
         public Dictionary<string, string> Configuration;
 
         public static readonly string CfgNode_Language = "Language";
@@ -35,12 +35,20 @@ namespace BallanceTASEditor.Core {
                 fs.Close();
             }
 
+            // check field to make sure each field is existed
+            // because version update it might be changed
+            foreach(var pair in _defaultValue) {
+                if (!data.ContainsKey(pair.Key)) {
+                    data.Add(pair.Key, pair.Value);
+                }
+            }
+
             return data;
         }
 
         void Init() {
             using (StreamWriter fs = new StreamWriter(Path.Combine(Environment.CurrentDirectory, _fileName), false, Encoding.UTF8)) {
-                fs.Write(_defaultValue);
+                fs.Write(JsonConvert.SerializeObject(_defaultValue));
                 fs.Close();
             }
         }
diff --git a/BallanceTASEditor/Language/CHS.xaml b/BallanceTASEditor/Language/CHS.xaml
index 79e8b19..acf2989 100644
--- a/BallanceTASEditor/Language/CHS.xaml
+++ b/BallanceTASEditor/Language/CHS.xaml
@@ -16,12 +16,13 @@
     <sys:String x:Key="ui_MainWindow_Menu_Display_Redo">重做</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Display_ItemCount">项个数</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Display_OverwrittenPaste">覆盖式粘贴</sys:String>
+    <sys:String x:Key="ui_MainWindow_Menu_Display_HorizontalLayout">横向布局</sys:String>
 
     <sys:String x:Key="ui_MainWindow_Menu_Help">帮助</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Help_ReportBugs">汇报漏洞</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Help_About">关于</sys:String>
 
-    <sys:String x:Key="ui_MainWindow_EditorNote">打开一个 TAS 文件以编辑</sys:String>
+    <sys:String x:Key="ui_MainWindow_EditorNote">打开或拖入一个 TAS 文件以编辑</sys:String>
 
     <sys:String x:Key="ui_MainWindow_Tools_Cursor">选择模式</sys:String>
     <sys:String x:Key="ui_MainWindow_Tools_Fill">填充模式</sys:String>
diff --git a/BallanceTASEditor/Language/DefaultLanguage.xaml b/BallanceTASEditor/Language/DefaultLanguage.xaml
index 67689fa..723b9d3 100644
--- a/BallanceTASEditor/Language/DefaultLanguage.xaml
+++ b/BallanceTASEditor/Language/DefaultLanguage.xaml
@@ -16,12 +16,13 @@
     <sys:String x:Key="ui_MainWindow_Menu_Display_Redo">Redo</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Display_ItemCount">Item Count</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Display_OverwrittenPaste">Overwritten Paste</sys:String>
+    <sys:String x:Key="ui_MainWindow_Menu_Display_HorizontalLayout">Horizontal Layout</sys:String>
 
     <sys:String x:Key="ui_MainWindow_Menu_Help">Help</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Help_ReportBugs">Report Bugs</sys:String>
     <sys:String x:Key="ui_MainWindow_Menu_Help_About">About</sys:String>
 
-    <sys:String x:Key="ui_MainWindow_EditorNote">Open a TAS file for editing</sys:String>
+    <sys:String x:Key="ui_MainWindow_EditorNote">Open or drop a TAS file for editing</sys:String>
     
     <sys:String x:Key="ui_MainWindow_Tools_Cursor">Select mode</sys:String>
     <sys:String x:Key="ui_MainWindow_Tools_Fill">Fill mode</sys:String>
diff --git a/BallanceTASEditor/MainWindow.xaml b/BallanceTASEditor/MainWindow.xaml
index d0047a2..bc05d01 100644
--- a/BallanceTASEditor/MainWindow.xaml
+++ b/BallanceTASEditor/MainWindow.xaml
@@ -62,9 +62,11 @@
             <MenuItem Header="{DynamicResource ui_MainWindow_Menu_Display}">
                 <MenuItem x:Name="uiMenu_Display_Undo" Header="{DynamicResource ui_MainWindow_Menu_Display_Undo}" Click="funcMenu_Display_Undo" InputGestureText="Ctrl + Z"/>
                 <MenuItem x:Name="uiMenu_Display_Redo" Header="{DynamicResource ui_MainWindow_Menu_Display_Redo}" Click="funcMenu_Display_Redo" InputGestureText="Ctrl + Y"/>
+                <Separator/>
                 <MenuItem x:Name="uiMenu_Display_ItemCount" Header="{DynamicResource ui_MainWindow_Menu_Display_ItemCount}" Click="funcMenu_Display_ItemCount"/>
-                <MenuItem x:Name="uiMenu_Display_OverwrittenPaste" Header="{DynamicResource ui_MainWindow_Menu_Display_OverwrittenPaste}" IsCheckable="True" Checked="funcMenu_Display_OverwrittenPaste" Unchecked="funcMenu_Display_OverwrittenPaste"/>
-                <MenuItem x:Name="uiMenu_Display_HorizontalLayout" Header="???" IsCheckable="True"/>
+                <Separator/>
+                <MenuItem x:Name="uiMenu_Display_OverwrittenPaste" Header="{DynamicResource ui_MainWindow_Menu_Display_OverwrittenPaste}" Click="funcMenu_Display_OverwrittenPaste"/>
+                <MenuItem x:Name="uiMenu_Display_HorizontalLayout" Header="{DynamicResource ui_MainWindow_Menu_Display_HorizontalLayout}" Click="funcMenu_Display_HorizontalLayout"/>
             </MenuItem>
             <MenuItem Header="{DynamicResource ui_MainWindow_Menu_Help}">
                 <MenuItem x:Name="uiMenu_Help_ReportBugs" Header="{DynamicResource ui_MainWindow_Menu_Help_ReportBugs}" Click="funcMenu_Help_ReportBugs"/>
diff --git a/BallanceTASEditor/MainWindow.xaml.cs b/BallanceTASEditor/MainWindow.xaml.cs
index 1984243..79b703b 100644
--- a/BallanceTASEditor/MainWindow.xaml.cs
+++ b/BallanceTASEditor/MainWindow.xaml.cs
@@ -22,9 +22,12 @@ namespace BallanceTASEditor {
     public partial class MainWindow : Window {
         public MainWindow() {
             InitializeComponent();
-            RefreshUI(false);
+
             mFlow = new TASFlow(uiTASData);
             mSlider = new TASSlider(uiTASSlider);
+
+            RefreshUI(false);
+            ApplyConfigureManager();
         }
 
         TASFile mFile;
@@ -96,16 +99,24 @@ namespace BallanceTASEditor {
         private void funcMenu_Display_ItemCount(object sender, RoutedEventArgs e) {
             int newvalue = 0;
             if (DialogUtil.InputNumber("Input new count (>=5 && <=30)", 5, 30, ref newvalue)) {
-                mViewer.ChangeListLength(newvalue);
+                ChangeItemCount(newvalue);
             }
         }
 
         private void funcMenu_Display_OverwrittenPaste(object sender, RoutedEventArgs e) {
-            //uiMenu_Display_OverwrittenPaste.IsChecked = !uiMenu_Display_OverwrittenPaste.IsChecked;
+            uiMenu_Display_OverwrittenPaste.IsChecked = !uiMenu_Display_OverwrittenPaste.IsChecked;
+
+            GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_IsOverwrittenPaste] = uiMenu_Display_OverwrittenPaste.IsChecked.ToString();
             if (mViewer != null)
                 mViewer.ChangeOverwrittenMode(uiMenu_Display_OverwrittenPaste.IsChecked);
         }
 
+        private void funcMenu_Display_HorizontalLayout(object sender, RoutedEventArgs e) {
+            uiMenu_Display_HorizontalLayout.IsChecked = !uiMenu_Display_HorizontalLayout.IsChecked;
+            GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_IsHorizonLayout] = uiMenu_Display_HorizontalLayout.IsChecked.ToString();
+            ChangeLayout(uiMenu_Display_HorizontalLayout.IsChecked);
+        }
+
         private void funcMenu_Display_Redo(object sender, RoutedEventArgs e) {
             mViewer.ProcessOperation(OperationEnum.Redo);
         }
@@ -227,7 +238,7 @@ namespace BallanceTASEditor {
                 } else if (KeyboardState.IsKeyPressed(KeyboardState.VirtualKeyStates.VK_CONTROL)) {
                     // decrease item count
                     var newvalue = mViewer.GetItemCountInPage();
-                    mViewer.ChangeListLength(newvalue - 1);
+                    ChangeItemCount(newvalue - 1);
                 } else {
                     // normally move
                     mSlider.MoveSliderManually(true, false, mViewer.GetItemCountInPage());
@@ -241,7 +252,7 @@ namespace BallanceTASEditor {
                 } else if (KeyboardState.IsKeyPressed(KeyboardState.VirtualKeyStates.VK_CONTROL)) {
                     // increase item count
                     var newvalue = mViewer.GetItemCountInPage();
-                    mViewer.ChangeListLength(newvalue + 1);
+                    ChangeItemCount(newvalue + 1);
                 } else {
                     // normally move
                     mSlider.MoveSliderManually(false, false, mViewer.GetItemCountInPage());
@@ -265,9 +276,22 @@ namespace BallanceTASEditor {
             else e.Effects = DragDropEffects.None;
         }
 
-
         #endregion
 
+        private void ApplyConfigureManager() {
+            var isOverwrittenPaste = bool.Parse(GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_IsOverwrittenPaste]);
+            var isHorizontalLayout = bool.Parse(GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_IsHorizonLayout]);
+            var itemCount = int.Parse(GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_ItemCount]);
+
+            uiMenu_Display_OverwrittenPaste.IsChecked = isOverwrittenPaste;
+            uiMenu_Display_HorizontalLayout.IsChecked = isHorizontalLayout;
+            if (mViewer != null) {
+                mViewer.ChangeOverwrittenMode(isOverwrittenPaste);
+                mViewer.ChangeListLength(itemCount);
+                ChangeLayout(isHorizontalLayout);
+            }
+        }
+
         private void OpenFile(string file) {
             try {
                 mFile = new TASFile(file);
@@ -284,9 +308,8 @@ namespace BallanceTASEditor {
             mViewer.UpdateToolMode += RefreshToolMode;
 
             RefreshUI(true);
-
+            ApplyConfigureManager(); // apply item count and overwritten item
             mViewer.ChangeToolMode(ToolMode.Cursor);
-            mViewer.ChangeOverwrittenMode(uiMenu_Display_OverwrittenPaste.IsChecked);
         }
 
         private void RefreshToolMode(ToolMode mode) {
@@ -333,6 +356,7 @@ namespace BallanceTASEditor {
 
                 uiMenu_Display_ItemCount.IsEnabled = true;
                 uiMenu_Display_OverwrittenPaste.IsEnabled = true;
+                uiMenu_Display_HorizontalLayout.IsEnabled = true;
                 uiMenu_Display_Undo.IsEnabled = true;
                 uiMenu_Display_Redo.IsEnabled = true;
 
@@ -348,6 +372,7 @@ namespace BallanceTASEditor {
 
                 uiMenu_Display_ItemCount.IsEnabled = false;
                 uiMenu_Display_OverwrittenPaste.IsEnabled = false;
+                uiMenu_Display_HorizontalLayout.IsEnabled = false;
                 uiMenu_Display_Undo.IsEnabled = false;
                 uiMenu_Display_Redo.IsEnabled = false;
 
@@ -397,5 +422,15 @@ namespace BallanceTASEditor {
             }
         }
 
+        private void ChangeItemCount(int count) {
+            GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_ItemCount] = count.ToString();
+            mViewer.ChangeListLength(count);
+        }
+
+        private void ChangeLayout(bool isHorizontal) {
+            mFlow.ChangeLayout(isHorizontal);
+            // todo: add more change
+        }
+
     }
 }
diff --git a/BallanceTASEditor/UI/TASFlow.cs b/BallanceTASEditor/UI/TASFlow.cs
index 2485513..ba4231f 100644
--- a/BallanceTASEditor/UI/TASFlow.cs
+++ b/BallanceTASEditor/UI/TASFlow.cs
@@ -21,11 +21,13 @@ namespace BallanceTASEditor.UI {
             mItemList = new List<TASFlowUIItem>();
             mRectMap = new Dictionary<Rectangle, CellPosition>();
             mItemCount = 0;
+            mIsHorizontalLayout = true;
             SetItemCount(1);
         }
 
         public event Action Click;
 
+        private bool mIsHorizontalLayout;
         private Grid uiCoreWindow;
         private int mItemCount;
         private List<TASFlowUIItem> mItemList;
@@ -33,6 +35,13 @@ namespace BallanceTASEditor.UI {
         public SelectionHelp SelectionHelp { get; set; }
         public List<FrameDataDisplay> DataSources { get; set; }
 
+        public void ChangeLayout(bool isHorizontal) {
+            // the layout changed, re-construct elements
+            if (isHorizontal != mIsHorizontalLayout) {
+                // todo: change layout
+            }
+        }
+
         public void RefreshDataSources() {
             if (DataSources == null) return;
 
@@ -135,6 +144,14 @@ namespace BallanceTASEditor.UI {
                 } else {
                     SelectionHelp.FirstClick(mItemList[pos.column - 1].rawFrame, pos.field);
                 }
+            } else if (e.MouseDevice.RightButton == MouseButtonState.Pressed) {
+                // if we click right button and there are no full selection in cursor mode
+                // try to add a first selection
+                if (SelectionHelp.GetToolMode() == ToolMode.Cursor) {
+                    if (!SelectionHelp.IsDataReady()) {
+                        SelectionHelp.FirstClick(mItemList[pos.column - 1].rawFrame, pos.field);
+                    }
+                }
             }
 
             // note main window to process it.
diff --git a/BallanceTASEditor/UI/TASViewer.cs b/BallanceTASEditor/UI/TASViewer.cs
index b790048..8d9478c 100644
--- a/BallanceTASEditor/UI/TASViewer.cs
+++ b/BallanceTASEditor/UI/TASViewer.cs
@@ -34,9 +34,6 @@ namespace BallanceTASEditor.UI {
 
             mDataGrid.Click += funcDataMenu_Click;
             mSlider.ValueChanged += funcSlider_ValueChanged;
-
-            // display data
-            ChangeListLength(int.Parse(GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_ItemCount]));
         }
 
         public void Dispose() {