diff --git a/AApp/TheUser.cs b/AApp/TheUser.cs
index 7ab61c8..d0210e8 100644
--- a/AApp/TheUser.cs
+++ b/AApp/TheUser.cs
@@ -87,6 +87,18 @@ namespace SCJMapper_V2
       return Path.Combine( UserDir, mapName + ".xml" );
     }
 
+    /// <summary>
+    /// Returns the Layout Groups Json file name + path into our user dir
+    /// </summary>
+    /// <returns>A fully qualified filename</returns>
+    static public string LayoutJsonFileName( )
+    {
+      log.Debug( "LayoutJsonFileName - Entry" );
+
+      return Path.Combine( UserDir, "LayoutGroups.json" );
+    }
+
+
     /// <summary>
     /// Returns the mapping file name + path into our user dir
     /// </summary>
diff --git a/Layout/ActionGroups.cs b/Layout/ActionGroups.cs
index ca7f539..4c62268 100644
--- a/Layout/ActionGroups.cs
+++ b/Layout/ActionGroups.cs
@@ -11,6 +11,9 @@ namespace SCJMapper_V2.Layout
   /// </summary>
   class ActionGroups
   {
+    // logger
+    private static readonly log4net.ILog log = log4net.LogManager.GetLogger( System.Reflection.MethodBase.GetCurrentMethod( ).DeclaringType );
+
     /// <summary>
     /// All actionmap groups
     /// </summary>
@@ -24,7 +27,7 @@ namespace SCJMapper_V2.Layout
       Player,
       EVA,
       Vehicle,
-      VehicleWeapons,
+      //VehicleWeapons,  // removed in 3.10.0
       Lights,
       Interaction,
       Spectator,
@@ -39,33 +42,57 @@ namespace SCJMapper_V2.Layout
     static ActionGroups()
     {
       m_actionDict = new Dictionary<EGroup, List<string>>( );
-      // Define which maps belongs to which group
-      var x = new List<string>( ) { "spaceship_general", "spaceship_view", "spaceship_movement", "spaceship_docking", "spaceship_power", "IFCS_controls" };
-      m_actionDict.Add( EGroup.SpaceFlight, x );
-      x = new List<string>( ) { "spaceship_targeting", "spaceship_target_hailing", "spaceship_scanning", "spaceship_ping", "spaceship_radar" };
-      m_actionDict.Add( EGroup.SpaceTargeting, x );
-      x = new List<string>( ) { "spaceship_mining" };
-      m_actionDict.Add( EGroup.SpaceMining, x );
-      x = new List<string>( ) { "spaceship_turret", "spaceship_weapons", "spaceship_missiles", "spaceship_auto_weapons" };
-      m_actionDict.Add( EGroup.SpaceWeapons, x );
-      x = new List<string>( ) { "spaceship_defensive" };
-      m_actionDict.Add( EGroup.SpaceDefensive, x );
-      x = new List<string>( ) { "lights_controller" };
-      m_actionDict.Add( EGroup.Lights, x );
-      x = new List<string>( ) { "default", "prone", "player", "player_choice", "player_emotes", "player_input_optical_tracking" };
-      m_actionDict.Add( EGroup.Player, x );
-      x = new List<string>( ) { "zero_gravity_eva" };
-      m_actionDict.Add( EGroup.EVA, x );
-      x = new List<string>( ) { "vehicle_general", "vehicle_driver" };
-      m_actionDict.Add( EGroup.Vehicle, x );
-      x = new List<string>( ) { "vehicle_gunner" };
-      m_actionDict.Add( EGroup.VehicleWeapons, x );
-      x = new List<string>( ) { "spaceship_hud", "ui_textfield", "ui_notification" };
-      m_actionDict.Add( EGroup.Interaction, x );
-      x = new List<string>( ) { "spectator", "flycam", "view_director_mode" };
-      m_actionDict.Add( EGroup.Spectator, x );
-      x = new List<string>( ) { };
-      m_actionDict.Add( EGroup.Others, x );
+
+      // Try to read the user file
+      var lg = LayoutGroupsJson.FromJson( TheUser.LayoutJsonFileName( ) );
+      if ( lg != null ) {
+        log.Info( "Layout-ActionGroups: use user provided file" );
+        // read from the user file
+        m_actionDict.Add( EGroup.SpaceFlight, lg.SpaceFlight );
+        m_actionDict.Add( EGroup.SpaceTargeting, lg.SpaceTargeting );
+        m_actionDict.Add( EGroup.SpaceMining, lg.SpaceMining );
+        m_actionDict.Add( EGroup.SpaceWeapons, lg.SpaceWeapons );
+        m_actionDict.Add( EGroup.SpaceDefensive, lg.SpaceDefensive );
+        m_actionDict.Add( EGroup.Lights, lg.Lights );
+        m_actionDict.Add( EGroup.Player, lg.Player );
+        m_actionDict.Add( EGroup.EVA, lg.EVA );
+        m_actionDict.Add( EGroup.Vehicle, lg.Vehicle );
+        //m_actionDict.Add( EGroup.VehicleWeapons, lg.VehicleWeapons ); // removed in 3.10.0
+        m_actionDict.Add( EGroup.Interaction, lg.Interaction );
+        m_actionDict.Add( EGroup.Spectator, lg.Spectator );
+        m_actionDict.Add( EGroup.Others, lg.Others );
+      }
+      else {
+        log.Info( "Layout-ActionGroups: user provided file not available, use internal backup mapping" );
+        // use the built in backup assignment (as of 3.10.0/1
+        // Define which maps belongs to which group
+        var x = new List<string>( ) { "spaceship_general", "spaceship_view", "spaceship_movement", "spaceship_docking", "spaceship_power", "IFCS_controls" };
+        m_actionDict.Add( EGroup.SpaceFlight, x );
+        x = new List<string>( ) { "spaceship_targeting", "spaceship_target_hailing", "spaceship_scanning", "spaceship_ping", "spaceship_radar", "spaceship_targeting_advanced" };
+        m_actionDict.Add( EGroup.SpaceTargeting, x );
+        x = new List<string>( ) { "spaceship_mining" };
+        m_actionDict.Add( EGroup.SpaceMining, x );
+        x = new List<string>( ) { "turret_main", "spaceship_weapons", "spaceship_missiles", "spaceship_auto_weapons" };
+        m_actionDict.Add( EGroup.SpaceWeapons, x );
+        x = new List<string>( ) { "spaceship_defensive" };
+        m_actionDict.Add( EGroup.SpaceDefensive, x );
+        x = new List<string>( ) { "lights_controller" };
+        m_actionDict.Add( EGroup.Lights, x );
+        x = new List<string>( ) { "default", "prone", "player", "player_choice", "player_emotes", "player_input_optical_tracking" };
+        m_actionDict.Add( EGroup.Player, x );
+        x = new List<string>( ) { "zero_gravity_eva" };
+        m_actionDict.Add( EGroup.EVA, x );
+        x = new List<string>( ) { "vehicle_general", "vehicle_driver" };
+        m_actionDict.Add( EGroup.Vehicle, x );
+        //x = new List<string>( ) { "vehicle_gunner" }; // removed in 3.10.0
+        //m_actionDict.Add( EGroup.VehicleWeapons, x ); // removed in 3.10.0
+        x = new List<string>( ) { "spaceship_hud", "ui_textfield", "ui_notification" };
+        m_actionDict.Add( EGroup.Interaction, x );
+        x = new List<string>( ) { "spectator", "flycam", "view_director_mode" };
+        m_actionDict.Add( EGroup.Spectator, x );
+        x = new List<string>( ) { "server_renderer" };
+        m_actionDict.Add( EGroup.Others, x );
+      }
     }
 
     /// <summary>
diff --git a/Layout/LayoutGroups.cs b/Layout/LayoutGroups.cs
new file mode 100644
index 0000000..81d2f0d
--- /dev/null
+++ b/Layout/LayoutGroups.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Runtime.Serialization;
+
+namespace SCJMapper_V2.Layout
+{
+  // The Json file for LayoutGroups
+
+  /*
+   {
+      "_comment" : "Layout Groups File (leave group names alone, change only the contained groups)",
+      "SpaceFlight"       :[ "spaceship_general", "spaceship_view", "spaceship_movement", "spaceship_docking", "spaceship_power", "IFCS_controls"],
+      "SpaceDefensive"    :[ "spaceship_defensive" ],
+      "SpaceTargeting"    :[ "spaceship_targeting", "spaceship_target_hailing", "spaceship_scanning", "spaceship_ping", "spaceship_radar", "spaceship_targeting_advanced" ],
+      "SpaceWeapons"      :[ "turret_main", "spaceship_weapons", "spaceship_missiles", "spaceship_auto_weapons" ],
+      "SpaceMining"       :[ "spaceship_mining" ],
+      "Player"            :[ "default", "prone", "player", "player_choice", "player_emotes", "player_input_optical_tracking" ],
+      "EVA"               :[ "zero_gravity_eva" ],
+      "Vehicle"           :[ "vehicle_general", "vehicle_driver" ],
+      "Lights"            :[ "lights_controller" ],
+      "Interaction"       :[ "spaceship_hud", "ui_textfield", "ui_notification" ],
+      "Spectator"         :[ "spectator", "flycam", "view_director_mode" ],
+      "Others"            :[ "server_renderer" ]
+    }
+
+  */
+
+  /// <summary>
+  /// The LaoutGroups File
+  /// </summary>
+  [DataContract]
+  class LayoutGroups
+  {
+    [DataMember( IsRequired = false )]
+    public string _comment { get; set; }
+    [DataMember( IsRequired = true )]
+    public List<string> SpaceFlight { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> SpaceDefensive { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> SpaceTargeting { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> SpaceWeapons { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> SpaceMining { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> Player { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> EVA { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> Vehicle { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> Lights { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> Interaction { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> Spectator { get; set; } = new List<string>( );
+    [DataMember( IsRequired = true )]
+    public List<string> Others { get; set; } = new List<string>( );
+
+    // non Json
+
+  }
+}
diff --git a/Layout/LayoutGroupsJson.cs b/Layout/LayoutGroupsJson.cs
new file mode 100644
index 0000000..cc71ea3
--- /dev/null
+++ b/Layout/LayoutGroupsJson.cs
@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.Serialization.Json;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SCJMapper_V2.Layout
+{
+  class LayoutGroupsJson
+  {
+    // logger
+    private static readonly log4net.ILog log = log4net.LogManager.GetLogger( System.Reflection.MethodBase.GetCurrentMethod( ).DeclaringType );
+
+    /// <summary>
+    /// Reads from a LayoutGroups file
+    /// </summary>
+    /// <param name="jFilename">The Json Filename</param>
+    /// <returns>A LayoutGroups obj or null for errors</returns>
+    public static LayoutGroups FromJson( string jFilename )
+    {
+      LayoutGroups c = null;
+      if ( File.Exists( jFilename ) ) {
+        using ( var ts = File.OpenRead( jFilename ) ) {
+          c = FromJson( ts );
+        }
+      }
+      else {
+        log.Debug( $"LayoutGroups.FromJson: Userfile does not exist ({jFilename})" );
+      }
+      return c;
+    }
+
+
+    /// <summary>
+    /// Reads from a LayoutGroups stream
+    /// </summary>
+    /// <param name="jStream">An open stream at position</param>
+    /// <returns>A LayoutGroups obj or null for errors</returns>
+    public static LayoutGroups FromJson( Stream jStream )
+    {
+      try {
+        var jsonSerializer = new DataContractJsonSerializer( typeof( LayoutGroups ) );
+        object objResponse = jsonSerializer.ReadObject( jStream );
+        var jsonResults = objResponse as LayoutGroups;
+        return jsonResults;
+      }
+      catch ( Exception e ) {
+        log.Debug( $"LayoutGroups.FromJson: Serializer Exception ({e.Message})" );
+        return null;
+      }
+    }
+
+
+  }
+}
diff --git a/Layout/MapProps.cs b/Layout/MapProps.cs
index f2dfb1a..aa3f5d6 100644
--- a/Layout/MapProps.cs
+++ b/Layout/MapProps.cs
@@ -122,7 +122,7 @@ namespace SCJMapper_V2.Layout
         { EGroup.Player,          ConvertFromString(AppSettings.Instance.GroupColor_05) },
         { EGroup.EVA,             ConvertFromString(AppSettings.Instance.GroupColor_06) },
         { EGroup.Vehicle,         ConvertFromString(AppSettings.Instance.GroupColor_07) },
-        { EGroup.VehicleWeapons,  ConvertFromString(AppSettings.Instance.GroupColor_08) },
+       // { EGroup.VehicleWeapons,  ConvertFromString(AppSettings.Instance.GroupColor_08) }, // removed in 3.10.0
         { EGroup.Lights,          ConvertFromString(AppSettings.Instance.GroupColor_09) },
         { EGroup.Interaction,     ConvertFromString(AppSettings.Instance.GroupColor_10) },
         { EGroup.Spectator,       ConvertFromString(AppSettings.Instance.GroupColor_11) },
@@ -145,7 +145,7 @@ namespace SCJMapper_V2.Layout
       AppSettings.Instance.GroupColor_05 = ConvertToString( m_amColors[EGroup.Player] );
       AppSettings.Instance.GroupColor_06 = ConvertToString( m_amColors[EGroup.EVA] );
       AppSettings.Instance.GroupColor_07 = ConvertToString( m_amColors[EGroup.Vehicle] );
-      AppSettings.Instance.GroupColor_08 = ConvertToString( m_amColors[EGroup.VehicleWeapons] );
+      // AppSettings.Instance.GroupColor_08 = ConvertToString( m_amColors[EGroup.VehicleWeapons] );// removed in 3.10.0
       AppSettings.Instance.GroupColor_09 = ConvertToString( m_amColors[EGroup.Lights] );
       AppSettings.Instance.GroupColor_10 = ConvertToString( m_amColors[EGroup.Interaction] );
       AppSettings.Instance.GroupColor_11 = ConvertToString( m_amColors[EGroup.Spectator] );
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index a2cc65d..4ad62dd 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion( "2.47.0.82" )]
-[assembly: AssemblyFileVersion( "2.47.0.82" )]
+[assembly: AssemblyVersion( "2.48.0.83" )]
+[assembly: AssemblyFileVersion( "2.48.0.83" )]
diff --git a/ReadMe.txt b/ReadMe.txt
index 419f391..1f68fce 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -1,12 +1,12 @@
-SC Joystick Mapper V 2.47 - Build 82 BETA
-(c) Cassini, StandardToaster - 12-Apr-2020
+SC Joystick Mapper V 2.48 - Build 83 BETA
+(c) Cassini, StandardToaster - 18-Aug-2020
 
 Contains 14 files + graphics:
 
-SCJMapper.exe                The program (V2.46)
+SCJMapper.exe                The program (V2.48)
 
 - The following files and folders MUST be in the same folder as the Exe file
-SCJMapper.exe.config         Program config (V2.47)
+SCJMapper.exe.config         Program config (V2.48)
 de\SCJMapper.resources.dll   German language (V2.45)
 fr\SCJMapper.resources.dll   French language (V2.45)
 Storage\*.scj                Folder for collected assets (V2.35)
@@ -20,9 +20,9 @@ x64\libzstd.dll              Native dll for ZstdNet (v2.33)
 x86\libzstd.dll              Native dll for ZstdNet (v2.33)
 log4net.dll                  Managed Logging Assembly
 log4net.config.OFF           Config file for logging
-                               then look for  trace.log  in the same folder
+                               rename without .OFF, restart and then look for  trace.log  in the same folder
 
-SCJMapper_QGuide V2.35beta.pdf    Quick Guide (v2.35)
+SCJMapper_QGuide V2.47beta.pdf    Quick Guide (v2.47)
 ReadMe.txt                   This file
 
 graphics folder              Skybox Images (V2.32)               - graphics folder MUST be in the same folder as the Exe file
@@ -50,6 +50,8 @@ Scanned for viruses before packing...
 cassini@burri-web.org
 
 Changelog:
+V 2.48 - BETA Build 83
+- updated Actionmap Groups for Layout Dialog taken from LayoutGroups.json from <User>Documents\SCJMapper\[PTU] folder
 V 2.47 - BETA Build 82
 - add Mode to create SCJoyServer Command items from action tree
 - add Saving ActionTree to a json file in <User>\Documents\SCJM\file.scjn.json for other tools (easier than XML)
diff --git a/SCJMapper-V2.csproj b/SCJMapper-V2.csproj
index 6575020..0570c13 100644
--- a/SCJMapper-V2.csproj
+++ b/SCJMapper-V2.csproj
@@ -27,8 +27,8 @@
     <UpdatePeriodically>false</UpdatePeriodically>
     <UpdateRequired>false</UpdateRequired>
     <MapFileExtensions>true</MapFileExtensions>
-    <ApplicationRevision>82</ApplicationRevision>
-    <ApplicationVersion>2.47.0.82</ApplicationVersion>
+    <ApplicationRevision>83</ApplicationRevision>
+    <ApplicationVersion>2.48.0.83</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
@@ -168,6 +168,8 @@
     <Compile Include="Layout\ActionItem.cs" />
     <Compile Include="Layout\ActionItemList.cs" />
     <Compile Include="Layout\DbgActionItemList.cs" />
+    <Compile Include="Layout\LayoutGroups.cs" />
+    <Compile Include="Layout\LayoutGroupsJson.cs" />
     <Compile Include="Layout\MapProps.cs" />
     <Compile Include="Layout\ControllerJson.cs" />
     <Compile Include="Layout\DeviceFile.cs" />
diff --git a/graphics/layouts/LayoutGroups.json b/graphics/layouts/LayoutGroups.json
new file mode 100644
index 0000000..2502f67
--- /dev/null
+++ b/graphics/layouts/LayoutGroups.json
@@ -0,0 +1,62 @@
+{
+  "_comment": "Layout Groups File as of Alpha 3.10.0 (leave group names alone, change only the contained groups)",
+  "SpaceFlight": [
+    "spaceship_general",
+    "spaceship_view",
+    "spaceship_movement",
+    "spaceship_docking",
+    "spaceship_power",
+    "IFCS_controls"
+  ],
+  "SpaceDefensive": [
+    "spaceship_defensive"
+  ],
+  "SpaceTargeting": [
+    "spaceship_targeting",
+    "spaceship_target_hailing",
+    "spaceship_scanning",
+    "spaceship_ping",
+    "spaceship_radar",
+    "spaceship_targeting_advanced"
+  ],
+  "SpaceWeapons": [
+    "turret_main",
+    "spaceship_weapons",
+    "spaceship_missiles",
+    "spaceship_auto_weapons"
+  ],
+  "SpaceMining": [
+    "spaceship_mining"
+  ],
+  "Player": [
+    "default",
+    "prone",
+    "player",
+    "player_choice",
+    "player_emotes",
+    "player_input_optical_tracking"
+  ],
+  "EVA": [
+    "zero_gravity_eva"
+  ],
+  "Vehicle": [
+    "vehicle_general",
+    "vehicle_driver"
+  ],
+  "Lights": [
+    "lights_controller"
+  ],
+  "Interaction": [
+    "spaceship_hud",
+    "ui_textfield",
+    "ui_notification"
+  ],
+  "Spectator": [
+    "spectator",
+    "flycam",
+    "view_director_mode"
+  ],
+  "Others": [
+    "server_renderer"
+  ]
+}
\ No newline at end of file