When Working with Clips on Locked Tracks
Clip items on locked tracks cannot be moved, edited, deleted, or modified in any way.
However, they can still be selected, along with any linked items in other tracks.
The Editing tab of the User Preferences window has an option called “Pen tools can
edit locked item overlays” (to view this window, choose Final Cut Pro > User
Preferences). If this option is selected, you can use the Pen, Delete Point, and Smooth
Point tools to modify the audio levels or opacity of clip items even though they’re on
locked tracks. Clip overlays only control audio levels and video opacity. No other clip
parameters can be changed when a track is locked.
To disable a track:
Click the Track Visibility control of the track you want to disable.
Note: If your sequence has clip items that have been rendered, a dialog appears saying
that the render files will be deleted. If you don’t need the render files, click Continue.
For more information about rendering, see Volume III, Chapter 29, “Rendering and
Video Processing Settings.”
To enable a single video or audio track while disabling all others:
Press Option while clicking the Track Visibility control for that track.
All other video tracks or all other audio tracks except for the one you clicked