Initial files

Assets/Scripts/ModelViewerBase/RuntimeGizmo/CameraTransformCommand.cs

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+using CommandUndoRedo;
+
+public class CameraTransformCommand : ICommand
+{
+    public CameraContainer Container;
+
+    public KeyframeDataCamera NewValues;
+    public KeyframeDataCamera OldValues;
+
+    public int Frame;
+
+    public void Execute()
+    {
+        TimelineController.SetCurrentFrame(Frame);
+        Container.PastePose(NewValues);
+        Container.SetKeyframe();
+    }
+
+    public void UnExecute()
+    {
+        TimelineController.SetCurrentFrame(Frame);
+        Container.PastePose(OldValues);
+        Container.SetKeyframe();
+    }
+}

Assets/Scripts/ModelViewerBase/RuntimeGizmo/CameraTransformCommand.cs.meta

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Assets/Scripts/ModelViewerBase/RuntimeGizmo/HandleUndoData.cs

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+using UnityEngine;
+
+public class HandleUndoData : UndoData
+{
+    public UIHandle Handle;
+    public Transform NewPosition;
+    public SerializableTransform OldPosition;
+
+    public HandleUndoData() { }
+
+    public HandleUndoData(UIHandle handle)
+    {
+        Handle = handle;
+    }
+}

Assets/Scripts/ModelViewerBase/RuntimeGizmo/HandleUndoData.cs.meta

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