Editor Core

Change Speed

Change the playback speed of an overlay.

Slow Motion

Apply slow motion effect to an overlay.

Batch Speed Change

Apply a speed change to multiple overlays at once.

Move Overlay

Move an overlay to a new start position on the timeline without changing its duration. Pushes neighbors on the same row.

Extend Duration

Increase an overlay's duration by a delta. Pushes neighbors on the same row.

Shorten Duration

Shorten an overlay by removing a number of seconds/frames from the end. Use this when user says 'make shorter', 'reduce duration', 'shorten by X seconds'. Do NOT use trim_to_playhead for this — trim_to_playhead is only for cutting at the playhead position.

Trim to Playhead

Cut the overlay at the playhead position. ONLY use when user explicitly mentions 'playhead', 'current position', 'trim here', or 'cut here'. Do NOT use for 'make shorter' or 'reduce duration' — use make_shorter instead.

Split at Playhead

Split the selected overlay into two parts at the playhead position.

Delete Overlay

Delete an overlay from the timeline permanently.

Duplicate Overlay

Create an exact copy of an overlay on the timeline.

Seek Playhead

Jump/navigate the playhead to a specific frame. Does NOT move or shift any overlays — playhead navigation only.

Close Gaps

Close all gaps between overlays on the timeline, pulling clips together.

Move/Shift Timeline Forward

Move the timeline forward — shifts/pushes ALL overlays on every row that start at or after the playhead (or a specified frame) forward by the given number of frames. This is the command for moving overlays forward on the timeline.

Batch Commands

Execute multiple editor commands atomically as a single batch operation.