diff --git a/Source/Editor/GUI/Timeline/Media.cs b/Source/Editor/GUI/Timeline/Media.cs
index 7a958c220..5fd390817 100644
--- a/Source/Editor/GUI/Timeline/Media.cs
+++ b/Source/Editor/GUI/Timeline/Media.cs
@@ -61,7 +61,11 @@ namespace FlaxEditor.GUI.Timeline
             public int DurationFrames
             {
                 get => Media.DurationFrames;
-                set => Media.DurationFrames = value;
+                set
+                {
+                    if (Media.CanResize)
+                        Media.DurationFrames = value;
+                }
             }
 
             /// <summary>
@@ -71,7 +75,11 @@ namespace FlaxEditor.GUI.Timeline
             public float Duration
             {
                 get => Media.Duration;
-                set => Media.Duration = value;
+                set
+                {
+                    if (Media.CanResize)
+                        Media.Duration = value;
+                }
             }
 
             private bool UseFrames => Media.Timeline.TimeShowMode == Timeline.TimeShowModes.Frames;
@@ -204,6 +212,11 @@ namespace FlaxEditor.GUI.Timeline
         /// </summary>
         public bool CanDelete;
 
+        /// <summary>
+        /// Gets a value indicating whether this media can be resized (duration changed).
+        /// </summary>
+        public bool CanResize;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="Media"/> class.
         /// </summary>
@@ -341,7 +354,7 @@ namespace FlaxEditor.GUI.Timeline
             {
                 Render2D.DrawLine(bounds.UpperLeft, bounds.BottomLeft, moveColor, moveThickness);
             }
-            else if (IsMouseOver && MoveLeftEdgeRect.Contains(ref _mouseLocation))
+            else if (IsMouseOver && CanResize && MoveLeftEdgeRect.Contains(ref _mouseLocation))
             {
                 Render2D.DrawLine(bounds.UpperLeft, bounds.BottomLeft, Color.Yellow);
             }
@@ -349,7 +362,7 @@ namespace FlaxEditor.GUI.Timeline
             {
                 Render2D.DrawLine(bounds.UpperRight, bounds.BottomRight, moveColor, moveThickness);
             }
-            else if (IsMouseOver && MoveRightEdgeRect.Contains(ref _mouseLocation))
+            else if (IsMouseOver && CanResize && MoveRightEdgeRect.Contains(ref _mouseLocation))
             {
                 Render2D.DrawLine(bounds.UpperRight, bounds.BottomRight, Color.Yellow);
             }
@@ -369,8 +382,8 @@ namespace FlaxEditor.GUI.Timeline
                 _startMoveLocation = Root.MousePosition;
                 _startMoveStartFrame = StartFrame;
                 _startMoveDuration = DurationFrames;
-                _startMoveLeftEdge = MoveLeftEdgeRect.Contains(ref location);
-                _startMoveRightEdge = MoveRightEdgeRect.Contains(ref location);
+                _startMoveLeftEdge = MoveLeftEdgeRect.Contains(ref location) && CanResize;
+                _startMoveRightEdge = MoveRightEdgeRect.Contains(ref location) && CanResize;
 
                 StartMouseCapture(true);