diff --git a/Plane.FormationCreator/MainWindow.xaml.cs b/Plane.FormationCreator/MainWindow.xaml.cs
index 59cd581..8a580c8 100644
--- a/Plane.FormationCreator/MainWindow.xaml.cs
+++ b/Plane.FormationCreator/MainWindow.xaml.cs
@@ -50,7 +50,7 @@ namespace Plane.FormationCreator
             {
                 loginWindow = new ConnectWindow();
             }
-            loginWindow.ShowDialog();
+            loginWindow.Show();
         }
 
         private void btnLogin_Click(object sender, RoutedEventArgs e)
diff --git a/Plane.FormationCreator/ViewModels/ConnectViewModel.cs b/Plane.FormationCreator/ViewModels/ConnectViewModel.cs
index c47cb36..37a7caf 100644
--- a/Plane.FormationCreator/ViewModels/ConnectViewModel.cs
+++ b/Plane.FormationCreator/ViewModels/ConnectViewModel.cs
@@ -132,7 +132,21 @@ namespace Plane.FormationCreator.ViewModels
             {
                 return _WriteIdCommand ?? (_WriteIdCommand = new RelayCommand(async () =>
                 {
-                    await WriteIdCommandAsync(CopterNum);
+                    await WriteIdCommandAsync(CopterNum, MavComm.COMMANDTYPE4);
+                }
+                ));
+            }
+        }
+
+
+        private ICommand _ChangeWriteMissionCommand;
+        public ICommand ChangeWriteMissionCommand
+        {
+            get
+            {
+                return _ChangeWriteMissionCommand ?? (_ChangeWriteMissionCommand = new RelayCommand(async () =>
+                {
+                    await WriteIdCommandAsync(0, MavComm.COMM_WRITE_MISSION);
                 }
                 ));
             }
@@ -279,9 +293,11 @@ namespace Plane.FormationCreator.ViewModels
         }
 
 
-        private async Task WriteIdCommandAsync(int num)
+
+
+        private async Task WriteIdCommandAsync(int num, short messageType)
         {
-            await commModule.GeneratePacketAsync((short)num, (byte)Protocols.MavComm.COMMANDTYPE4);
+            await commModule.GeneratePacketAsync((short)num, messageType);
         }
 
 
diff --git a/Plane.FormationCreator/ViewModels/ControlPanelViewModel.cs b/Plane.FormationCreator/ViewModels/ControlPanelViewModel.cs
index 08b8253..d376051 100644
--- a/Plane.FormationCreator/ViewModels/ControlPanelViewModel.cs
+++ b/Plane.FormationCreator/ViewModels/ControlPanelViewModel.cs
@@ -202,7 +202,7 @@ namespace Plane.FormationCreator.ViewModels
             }
         }
 
-        private const string NTF_GROUPLED_OFF = "NTF_GROUPLED_OFF";
+        private const string NTF_GROUPLED_OFF = "NTF_GLED_OFF";
         private ICommand _LEDOnOffCommand;
         public ICommand LEDOnOffCommand
         {
diff --git a/Plane.FormationCreator/Views/ConnectWindow.xaml b/Plane.FormationCreator/Views/ConnectWindow.xaml
index 3d81ccd..60110bf 100644
--- a/Plane.FormationCreator/Views/ConnectWindow.xaml
+++ b/Plane.FormationCreator/Views/ConnectWindow.xaml
@@ -108,6 +108,7 @@
                                IsProcessing="{Binding IsProcessing}"
                                Command="{Binding Path=ConnectCommand}"
                                CommandParameter="SerialPort" />
+            <Button Content="切换写航点"  Margin="5,5,0,5" Command="{Binding Path=ChangeWriteMissionCommand}" />
             <!--<ec:ProgressButton Name="btnConnectUdp"
                                Grid.Row="1"
                                Grid.ColumnSpan="3"
@@ -128,6 +129,7 @@
             <Button Content="设置20台" Margin="5" Command="{Binding Path=SendCommand}" />
             <Button Content="写入航点" Margin="5" Command="{Binding Path=CommWriteMissionCommand}" />
             <Button Content="广播编号"  Margin="5,5,0,5" Command="{Binding Path=WriteIdCommand}" />
+            
             <TextBox Margin="2,5,5,5" Width="30" Text="{Binding CopterNum}"></TextBox>
         </StackPanel>