Unlink video and audio in the Motion Timeline
Ordinarily, objects that contain both audio and video are linked so they remain in sync. This link is represented by an icon in the Timeline layers list.
Note: To display the Audio Timeline, click the Show/Hide Audio Timeline button, located on the right side of the timing toolbar.
Objects that are linked are always edited together in the Timeline. Operations such as cut, copy, paste, and split affect both audio and video. However, if you want to break that relationship so you can move or edit the audio or video without the other tagging along, you can disable that link and move either object freely. Beware that this might result in your audio and video playing out of sync.
Manipulate audio and video elements separately
In the Timeline layers list in Motion, click the link icon to the right of the object name for the video or audio element.
A slash appears over the link icon in all previously linked layers.
Move, trim, or slip the audio bar or video bar.
The link icon also appears in the Layers list and the Audio list of the Project pane.
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