diff --git a/v2rayN/v2rayN/App.xaml b/v2rayN/v2rayN/App.xaml
index a5bafb0d..ad8f5d4a 100644
--- a/v2rayN/v2rayN/App.xaml
+++ b/v2rayN/v2rayN/App.xaml
@@ -1,9 +1,9 @@
 <Application
     x:Class="v2rayN.App"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:conv="clr-namespace:v2rayN.Converters"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     ShutdownMode="OnExplicitShutdown"
     StartupUri="Views/MainWindow.xaml">
     <Application.Resources>
diff --git a/v2rayN/v2rayN/Global.cs b/v2rayN/v2rayN/Global.cs
index c689e6d2..c23542c8 100644
--- a/v2rayN/v2rayN/Global.cs
+++ b/v2rayN/v2rayN/Global.cs
@@ -158,6 +158,7 @@
         public static readonly List<string> TunMtus = new() { "9000", "1500" };
         public static readonly List<string> TunStacks = new() { "gvisor", "system" };
         public static readonly List<string> PresetMsgFilters = new() { "proxy", "direct", "block", "" };
+        public static readonly List<string> SingboxMuxs = new() { "h2mux", "smux", "yamux", "" };
 
         #endregion const
 
diff --git a/v2rayN/v2rayN/Handler/ConfigHandler.cs b/v2rayN/v2rayN/Handler/ConfigHandler.cs
index 1f7e6598..b5eaf3d0 100644
--- a/v2rayN/v2rayN/Handler/ConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/ConfigHandler.cs
@@ -191,6 +191,18 @@ namespace v2rayN.Handler
                 config.guiItem.statisticsFreshRate = 1;
             }
 
+            if (config.mux4Sbox == null)
+            {
+                config.mux4Sbox = new()
+                {
+                    protocol = Global.SingboxMuxs[0],
+                    max_connections = 4,
+                    min_streams = 4,
+                    max_streams = 0,
+                    padding = true
+                };
+            }
+
             LazyConfig.Instance.SetConfig(config);
             return 0;
         }
diff --git a/v2rayN/v2rayN/Handler/CoreConfigSingbox.cs b/v2rayN/v2rayN/Handler/CoreConfigSingbox.cs
index 0916cd7b..2b7bb575 100644
--- a/v2rayN/v2rayN/Handler/CoreConfigSingbox.cs
+++ b/v2rayN/v2rayN/Handler/CoreConfigSingbox.cs
@@ -288,10 +288,11 @@ namespace v2rayN.Handler
                     var mux = new Multiplex4Sbox()
                     {
                         enabled = true,
-                        protocol = "smux",
-                        max_connections = 4,
-                        min_streams = 4,
-                        max_streams = 0,
+                        protocol = _config.mux4Sbox.protocol,
+                        max_connections = _config.mux4Sbox.max_connections,
+                        min_streams = _config.mux4Sbox.min_streams,
+                        max_streams = _config.mux4Sbox.max_streams,
+                        padding = _config.mux4Sbox.padding
                     };
                     outbound.multiplex = mux;
                 }
diff --git a/v2rayN/v2rayN/Handler/CoreHandler.cs b/v2rayN/v2rayN/Handler/CoreHandler.cs
index d10e129a..3f9f496a 100644
--- a/v2rayN/v2rayN/Handler/CoreHandler.cs
+++ b/v2rayN/v2rayN/Handler/CoreHandler.cs
@@ -74,7 +74,7 @@ namespace v2rayN.Handler
                     KillProcess(_process);
                     _process.Dispose();
                     _process = null;
-                    hasProc =true;
+                    hasProc = true;
                 }
 
                 if (_processPre != null)
diff --git a/v2rayN/v2rayN/Handler/MainFormHandler.cs b/v2rayN/v2rayN/Handler/MainFormHandler.cs
index bae28515..4390a6a9 100644
--- a/v2rayN/v2rayN/Handler/MainFormHandler.cs
+++ b/v2rayN/v2rayN/Handler/MainFormHandler.cs
@@ -208,8 +208,8 @@ namespace v2rayN.Handler
                     {
                         updateHandle.UpdateGeoFileAll(config, (bool success, string msg) =>
                         {
-                            update(false, msg);                          
-                        });                      
+                            update(false, msg);
+                        });
                         autoUpdateGeoTime = dtNow;
                     }
                 }
diff --git a/v2rayN/v2rayN/Mode/Config.cs b/v2rayN/v2rayN/Mode/Config.cs
index 978508e8..f6639b93 100644
--- a/v2rayN/v2rayN/Mode/Config.cs
+++ b/v2rayN/v2rayN/Mode/Config.cs
@@ -27,6 +27,7 @@
         public UIItem uiItem { get; set; }
         public ConstItem constItem { get; set; }
         public SpeedTestItem speedTestItem { get; set; }
+        public Mux4Sbox mux4Sbox { get; set; }
         public List<InItem> inbound { get; set; }
         public List<KeyEventItem> globalHotkeys { get; set; }
         public List<CoreTypeItem> coreTypeItem { get; set; }
diff --git a/v2rayN/v2rayN/Mode/ConfigItems.cs b/v2rayN/v2rayN/Mode/ConfigItems.cs
index 4ab9d3ce..59df1309 100644
--- a/v2rayN/v2rayN/Mode/ConfigItems.cs
+++ b/v2rayN/v2rayN/Mode/ConfigItems.cs
@@ -191,6 +191,7 @@ namespace v2rayN.Mode
         /// 域名解析策略
         /// </summary>
         public string domainStrategy { get; set; }
+
         public string domainStrategy4Singbox { get; set; }
 
         public string domainMatcher { get; set; }
@@ -205,4 +206,14 @@ namespace v2rayN.Mode
         public int Width { get; set; }
         public int Index { get; set; }
     }
+
+    [Serializable]
+    public class Mux4Sbox
+    {
+        public string protocol { get; set; }
+        public int max_connections { get; set; }
+        public int min_streams { get; set; }
+        public int max_streams { get; set; }
+        public bool padding { get; set; }
+    }
 }
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Mode/SingboxConfig.cs b/v2rayN/v2rayN/Mode/SingboxConfig.cs
index fc8a09df..64e06798 100644
--- a/v2rayN/v2rayN/Mode/SingboxConfig.cs
+++ b/v2rayN/v2rayN/Mode/SingboxConfig.cs
@@ -127,6 +127,7 @@
         public int max_connections { get; set; }
         public int min_streams { get; set; }
         public int max_streams { get; set; }
+        public bool padding { get; set; }
     }
 
     public class Utls4Sbox
diff --git a/v2rayN/v2rayN/Resx/ResUI.Designer.cs b/v2rayN/v2rayN/Resx/ResUI.Designer.cs
index c09993d2..a40b512b 100644
--- a/v2rayN/v2rayN/Resx/ResUI.Designer.cs
+++ b/v2rayN/v2rayN/Resx/ResUI.Designer.cs
@@ -2572,6 +2572,15 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Singbox Mux Protocol 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsMux4SboxProtocol {
+            get {
+                return ResourceManager.GetString("TbSettingsMux4SboxProtocol", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Turn on Mux Multiplexing 的本地化字符串。
         /// </summary>
diff --git a/v2rayN/v2rayN/Resx/ResUI.resx b/v2rayN/v2rayN/Resx/ResUI.resx
index d4c2f302..42d25a66 100644
--- a/v2rayN/v2rayN/Resx/ResUI.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.resx
@@ -1129,4 +1129,7 @@
   <data name="TbdomainStrategy4Singbox" xml:space="preserve">
     <value>Sing-box domain strategy</value>
   </data>
+  <data name="TbSettingsMux4SboxProtocol" xml:space="preserve">
+    <value>Singbox Mux Protocol</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx b/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx
index da34e169..778d3cae 100644
--- a/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx
@@ -1126,4 +1126,7 @@
   <data name="TbdomainStrategy4Singbox" xml:space="preserve">
     <value>Sing-box域名解析策略</value>
   </data>
+  <data name="TbSettingsMux4SboxProtocol" xml:space="preserve">
+    <value>Singbox Mux 多路复用协议</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
index 3f74de06..2607a847 100644
--- a/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
@@ -31,6 +31,7 @@ namespace v2rayN.ViewModels
         [Reactive] public bool defAllowInsecure { get; set; }
         [Reactive] public string defFingerprint { get; set; }
         [Reactive] public string defUserAgent { get; set; }
+        [Reactive] public string mux4SboxProtocol { get; set; }
 
         #endregion Core
 
@@ -131,6 +132,7 @@ namespace v2rayN.ViewModels
             defAllowInsecure = _config.coreBasicItem.defAllowInsecure;
             defFingerprint = _config.coreBasicItem.defFingerprint;
             defUserAgent = _config.coreBasicItem.defUserAgent;
+            mux4SboxProtocol = _config.mux4Sbox.protocol;
 
             #endregion Core
 
@@ -298,6 +300,7 @@ namespace v2rayN.ViewModels
             _config.coreBasicItem.defAllowInsecure = defAllowInsecure;
             _config.coreBasicItem.defFingerprint = defFingerprint;
             _config.coreBasicItem.defUserAgent = defUserAgent;
+            _config.mux4Sbox.protocol = mux4SboxProtocol;
 
             //Kcp
             //_config.kcpItem.mtu = Kcpmtu;
diff --git a/v2rayN/v2rayN/Views/DNSSettingWindow.xaml b/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
index c19509ef..5f4caf4b 100644
--- a/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
@@ -126,7 +126,6 @@
                         VerticalScrollBarVisibility="Auto" />
                 </DockPanel>
             </TabItem>
-
         </TabControl>
     </DockPanel>
 </reactiveui:ReactiveWindow>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
index becc1e84..3b568f8b 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
@@ -67,6 +67,7 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
+                            <RowDefinition Height="Auto" />
                         </Grid.RowDefinitions>
                         <Grid.ColumnDefinitions>
                             <ColumnDefinition Width="Auto" />
@@ -291,6 +292,21 @@
                             Margin="{StaticResource SettingItemMargin}"
                             Style="{StaticResource ToolbarTextBlock}"
                             Text="{x:Static resx:ResUI.TbSettingsDefUserAgentTips}" />
+
+                        <TextBlock
+                            Grid.Row="14"
+                            Grid.Column="0"
+                            Margin="{StaticResource SettingItemMargin}"
+                            VerticalAlignment="Center"
+                            Style="{StaticResource ToolbarTextBlock}"
+                            Text="{x:Static resx:ResUI.TbSettingsMux4SboxProtocol}" />
+                        <ComboBox
+                            x:Name="cmbmux4SboxProtocol"
+                            Grid.Row="14"
+                            Grid.Column="1"
+                            Width="200"
+                            Margin="{StaticResource SettingItemMargin}"
+                            Style="{StaticResource DefComboBox}" />
                     </Grid>
                 </ScrollViewer>
             </TabItem>
@@ -790,34 +806,6 @@
                             <ColumnDefinition Width="Auto" />
                         </Grid.ColumnDefinitions>
 
-                        <TextBlock
-                            Grid.Row="0"
-                            Grid.Column="0"
-                            Margin="{StaticResource SettingItemMargin}"
-                            VerticalAlignment="Center"
-                            Style="{StaticResource ToolbarTextBlock}"
-                            Text="{x:Static resx:ResUI.TbSettingsTunModeShowWindow}" />
-                        <ToggleButton
-                            x:Name="togShowWindow"
-                            Grid.Row="0"
-                            Grid.Column="1"
-                            Margin="{StaticResource SettingItemMargin}"
-                            HorizontalAlignment="Left" />
-
-                        <TextBlock
-                            Grid.Row="1"
-                            Grid.Column="0"
-                            Margin="{StaticResource SettingItemMargin}"
-                            VerticalAlignment="Center"
-                            Style="{StaticResource ToolbarTextBlock}"
-                            Text="{x:Static resx:ResUI.TbSettingsLogEnabled}" />
-                        <ToggleButton
-                            x:Name="togEnabledLog"
-                            Grid.Row="1"
-                            Grid.Column="1"
-                            Margin="{StaticResource SettingItemMargin}"
-                            HorizontalAlignment="Left" />
-
                         <TextBlock
                             Grid.Row="2"
                             Grid.Column="0"
@@ -864,33 +852,6 @@
                             HorizontalAlignment="Left"
                             Style="{StaticResource DefComboBox}" />
 
-                        <TextBlock
-                            Grid.Row="5"
-                            Grid.Column="0"
-                            Margin="{StaticResource SettingItemMargin}"
-                            VerticalAlignment="Center"
-                            Style="{StaticResource ToolbarTextBlock}"
-                            Text="{x:Static resx:ResUI.TbSettingsTunModeCustomTemplate}" />
-                        <TextBox
-                            x:Name="txtCustomTemplate"
-                            Grid.Row="5"
-                            Grid.Column="1"
-                            Width="400"
-                            Margin="{StaticResource SettingItemMargin}"
-                            VerticalAlignment="Top"
-                            AcceptsReturn="True"
-                            Style="{StaticResource DefTextBox}"
-                            TextWrapping="Wrap" />
-                        <Button
-                            x:Name="btnBrowse"
-                            Grid.Row="5"
-                            Grid.Column="2"
-                            Width="100"
-                            Margin="2,0,8,0"
-                            Click="btnBrowse_Click"
-                            Content="{x:Static resx:ResUI.TbBrowse}"
-                            Style="{StaticResource DefButton}" />
-
                         <TextBlock
                             Grid.Row="6"
                             Grid.Column="0"
diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
index 14ab4f41..95f83e24 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
@@ -39,6 +39,10 @@ namespace v2rayN.Views
             {
                 cmbdefUserAgent.Items.Add(it);
             });
+            Global.SingboxMuxs.ForEach(it =>
+            {
+                cmbmux4SboxProtocol.Items.Add(it);
+            });
 
             for (int i = 1; i <= 10; i++)
             {
@@ -134,6 +138,7 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.defAllowInsecure, v => v.togdefAllowInsecure.IsChecked).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.defFingerprint, v => v.cmbdefFingerprint.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.defUserAgent, v => v.cmbdefUserAgent.Text).DisposeWith(disposables);
+                this.Bind(ViewModel, vm => vm.mux4SboxProtocol, v => v.cmbmux4SboxProtocol.Text).DisposeWith(disposables);
 
                 //this.Bind(ViewModel, vm => vm.Kcpmtu, v => v.txtKcpmtu.Text).DisposeWith(disposables);
                 //this.Bind(ViewModel, vm => vm.Kcptti, v => v.txtKcptti.Text).DisposeWith(disposables);
@@ -165,12 +170,9 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.systemProxyAdvancedProtocol, v => v.cmbsystemProxyAdvancedProtocol.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.systemProxyExceptions, v => v.txtsystemProxyExceptions.Text).DisposeWith(disposables);
 
-                this.Bind(ViewModel, vm => vm.TunShowWindow, v => v.togShowWindow.IsChecked).DisposeWith(disposables);
-                this.Bind(ViewModel, vm => vm.TunEnabledLog, v => v.togEnabledLog.IsChecked).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.TunStrictRoute, v => v.togStrictRoute.IsChecked).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.TunStack, v => v.cmbStack.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.TunMtu, v => v.cmbMtu.Text).DisposeWith(disposables);
-                this.Bind(ViewModel, vm => vm.TunCustomTemplate, v => v.txtCustomTemplate.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.TunBypassMode, v => v.togBypassMode.IsChecked).DisposeWith(disposables);
                 this.OneWayBind(ViewModel, vm => vm.TunBypassMode, v => v.gridTunModeDirect.Visibility, vmToViewConverterOverride: new BooleanToVisibilityTypeConverter()).DisposeWith(disposables);
                 this.OneWayBind(ViewModel, vm => vm.TunBypassMode2, v => v.gridTunModeProxy.Visibility, vmToViewConverterOverride: new BooleanToVisibilityTypeConverter()).DisposeWith(disposables);
@@ -203,7 +205,7 @@ namespace v2rayN.Views
             openFileDialog1.Filter = "tunConfig|*.json|All|*.*";
             openFileDialog1.ShowDialog();
 
-            txtCustomTemplate.Text = openFileDialog1.FileName;
+            // txtCustomTemplate.Text = openFileDialog1.FileName;
         }
     }
 }
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Views/RoutingRuleSettingWindow.xaml.cs b/v2rayN/v2rayN/Views/RoutingRuleSettingWindow.xaml.cs
index 07fc91df..cfdb4432 100644
--- a/v2rayN/v2rayN/Views/RoutingRuleSettingWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/RoutingRuleSettingWindow.xaml.cs
@@ -38,7 +38,7 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.SelectedRouting.remarks, v => v.txtRemarks.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SelectedRouting.domainStrategy, v => v.cmbdomainStrategy.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SelectedRouting.domainStrategy4Singbox, v => v.cmbdomainStrategy4Singbox.Text).DisposeWith(disposables);
-                
+
                 this.Bind(ViewModel, vm => vm.SelectedRouting.url, v => v.txtUrl.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SelectedRouting.customIcon, v => v.txtCustomIcon.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SelectedRouting.sort, v => v.txtSort.Text).DisposeWith(disposables);
diff --git a/v2rayN/v2rayN/Views/SubEditWindow.xaml b/v2rayN/v2rayN/Views/SubEditWindow.xaml
index 43569ddf..3a8c3885 100644
--- a/v2rayN/v2rayN/Views/SubEditWindow.xaml
+++ b/v2rayN/v2rayN/Views/SubEditWindow.xaml
@@ -196,7 +196,6 @@
                     AcceptsReturn="True"
                     Style="{StaticResource MyOutlinedTextBox}" />
 
-
                 <TextBlock
                     Grid.Row="7"
                     Grid.Column="0"
@@ -214,7 +213,6 @@
                     MaxDropDownHeight="1000"
                     Style="{StaticResource MaterialDesignOutlinedComboBox}" />
 
-
                 <TextBlock
                     Grid.Row="8"
                     Grid.Column="0"