diff --git a/Installer/Changes.txt b/Installer/Changes.txt
index 837bf0913..999e7ae29 100644
--- a/Installer/Changes.txt
+++ b/Installer/Changes.txt
@@ -7,6 +7,7 @@ Tomb Editor:
  * Added Flyby Timeline control to edit and preview flyby sequences.
  * Added "Preview flyby sequence" and "Preview camera" context menus for cameras.
  * Added On Pickup, On Vehicle Enter and On Vehicle Exit global events in the global event set editor.
+ * Added support for mine cart floor data in TRX.
 
 WadTool:
  * Added missing TR2 henchman death sound (ID 838) and appropriate TR2 -> TEN conversion.
diff --git a/TombEditor/Command.cs b/TombEditor/Command.cs
index 05f67389a..c4e0df22d 100644
--- a/TombEditor/Command.cs
+++ b/TombEditor/Command.cs
@@ -2076,20 +2076,20 @@ static CommandHandler()
                 EditorActions.SetDiagonalWall(args.Editor.SelectedRoom, args.Editor.SelectedSectors.Area);
             });
 
-            AddCommand("SetBeetleCheckpoint", "Set beetle checkpoint / minecart right (TR3)", CommandType.Sectors, delegate (CommandArgs args)
+            AddCommand("SetBeetleCheckpoint", "Set beetle checkpoint / minecart right (TR3/TRX)", CommandType.Sectors, delegate (CommandArgs args)
             {
                 if (!EditorActions.CheckForRoomAndSectorSelection(args.Window))
                     return;
-                if (!EditorActions.VersionCheck(args.Editor.Level.Settings.GameVersion.Native() >= TRVersion.Game.TR3, "This flag"))
+                if (!EditorActions.VersionCheck(args.Editor.Level.Settings.GameVersion >= TRVersion.Game.TR3, "This flag"))
                     return;
                 EditorActions.ToggleSectorFlag(args.Editor.SelectedRoom, args.Editor.SelectedSectors.Area, SectorFlags.Beetle);
             });
 
-            AddCommand("SetTriggerTriggerer", "Set trigger triggerer / minecart left (TR3)", CommandType.Sectors, delegate (CommandArgs args)
+            AddCommand("SetTriggerTriggerer", "Set trigger triggerer / minecart left (TR3/TRX)", CommandType.Sectors, delegate (CommandArgs args)
             {
                 if (!EditorActions.CheckForRoomAndSectorSelection(args.Window))
                     return;
-                if (!EditorActions.VersionCheck(args.Editor.Level.Settings.GameVersion.Native() >= TRVersion.Game.TR3, "This flag"))
+                if (!EditorActions.VersionCheck(args.Editor.Level.Settings.GameVersion >= TRVersion.Game.TR3, "This flag"))
                     return;
                 EditorActions.ToggleSectorFlag(args.Editor.SelectedRoom, args.Editor.SelectedSectors.Area, SectorFlags.TriggerTriggerer);
             });
diff --git a/TombEditor/ToolWindows/SectorOptions.cs b/TombEditor/ToolWindows/SectorOptions.cs
index 0682cc1d7..79788cebc 100644
--- a/TombEditor/ToolWindows/SectorOptions.cs
+++ b/TombEditor/ToolWindows/SectorOptions.cs
@@ -74,15 +74,15 @@ obj is Editor.GameVersionChangedEvent ||
                 obj is Editor.LevelChangedEvent)
             {
                 bool climbingSupported = _editor.Level.Settings.GameVersion.SupportsClimbing();
-                bool isTR345 = _editor.Level.Settings.GameVersion.Native() >= TRVersion.Game.TR3;
+                bool beetleTrigMineSupported = _editor.Level.Settings.GameVersion >= TRVersion.Game.TR3;
 
                 butClimbNegativeX.Enabled = climbingSupported;
                 butClimbNegativeZ.Enabled = climbingSupported;
                 butClimbPositiveX.Enabled = climbingSupported;
                 butClimbPositiveZ.Enabled = climbingSupported;
                 butMonkey.Enabled = _editor.Level.Settings.GameVersion.SupportsMonkeySwing();
-                butFlagBeetle.Enabled = isTR345;
-                butFlagTriggerTriggerer.Enabled = isTR345;
+                butFlagBeetle.Enabled = beetleTrigMineSupported;
+                butFlagTriggerTriggerer.Enabled = beetleTrigMineSupported;
 
                 if (_editor.Level.Settings.GameVersion.Native() >= TRVersion.Game.TR4)
                 {
diff --git a/TombLib/TombLib/LevelData/Compilers/Trx.cs b/TombLib/TombLib/LevelData/Compilers/Trx.cs
index 11a367ee3..84234809f 100644
--- a/TombLib/TombLib/LevelData/Compilers/Trx.cs
+++ b/TombLib/TombLib/LevelData/Compilers/Trx.cs
@@ -56,6 +56,10 @@ private IEnumerable<TrxSectorEdit> GenerateTrxSectorEdits()
                     {
                         yield return climbEdit;
                     }
+                    if (GetMineCartEntry(teRoom, x, z) is TrxSectorEdit mineCartEdit)
+                    {
+                        yield return mineCartEdit;
+                    }
                     if (GetTriangulation(teRoom, x, z) is TrxSectorEdit triangulationEdit)
                     {
                         yield return triangulationEdit;
@@ -118,6 +122,33 @@ private TrxClimbEntry GetClimbEntry(Room teRoom, ushort x, ushort z)
         };
     }
 
+    private TrxMineCartEntry GetMineCartEntry(Room teRoom, ushort x, ushort z)
+    {
+        var teSector = teRoom.Sectors[x, z];
+        var left = (teSector.Flags & SectorFlags.TriggerTriggerer) != 0;
+        var right = (teSector.Flags & SectorFlags.Beetle) != 0;
+
+        var type = (left, right) switch
+        {
+            (true, true) => TrxMineCartType.Stop,
+            (true, false) => TrxMineCartType.Left,
+            (false, true) => TrxMineCartType.Right,
+            _ => TrxMineCartType.None,
+        };
+        if (type == TrxMineCartType.None)
+        {
+            return null;
+        }
+
+        return new()
+        {
+            RoomIndex = (short)_roomRemapping[teRoom],
+            X = x,
+            Z = z,
+            Type = type,
+        };
+    }
+
     private TrxTriangulationEntry GetTriangulation(Room teRoom, ushort x, ushort z)
     {
         var teSector = teRoom.Sectors[x, z];
diff --git a/TombLib/TombLib/LevelData/Compilers/Util/TrxInjector.cs b/TombLib/TombLib/LevelData/Compilers/Util/TrxInjector.cs
index 7a27a0eb2..be4049726 100644
--- a/TombLib/TombLib/LevelData/Compilers/Util/TrxInjector.cs
+++ b/TombLib/TombLib/LevelData/Compilers/Util/TrxInjector.cs
@@ -209,6 +209,26 @@ protected override void SerializeImpl(BinaryWriterEx writer)
     }
 }
 
+public enum TrxMineCartType
+{
+    None,
+    Left,
+    Right,
+    Stop,
+}
+
+public class TrxMineCartEntry : TrxSectorEdit
+{
+    public override int Command => 14;
+
+    public TrxMineCartType Type { get; set; }
+
+    protected override void SerializeImpl(BinaryWriterEx writer)
+    {
+        writer.Write((int)Type);
+    }
+}
+
 public class TrxTriangulationEntry : TrxSectorEdit
 {
     public override int Command => 13;