Apple Final Cut Express HD - Manual (Page 314)

314 Part VI Rough Editing
Locking Tracks to Prevent Edits or Changes
If you want to set one or more tracks as temporarily “off limits” to edits or changes, you
can lock them using the Lock Track control in each track’s header. While a locked track
can be specified as a destination track, no media will be edited into a locked track. 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. Locked
tracks appear cross-hatched in the Timeline.
To lock a single track:
m Click the Lock Track control to the left of the track.
The icon changes to a closed lock, and a crosshatch pattern is displayed on the track.
No edits will be placed on the locked track until you unlock it.
To lock a video track using keyboard shortcuts:
m Press F4 and the number of the track you want to lock (for tracks 1 through 9).
To lock an audio track using keyboard shortcuts:
m Press F5 and the number of the track you want to lock (for tracks 1 through 9).
To lock all video tracks in a sequence:
m Press Shift-F4.
To lock all audio tracks in a sequence:
m Press Shift-F5.
To lock all other audio or video tracks except the selected track:
m Press Option while clicking the Lock Track control for the desired track.
The control changes to
the locked position. Click
the control again to
unlock the track.
The track is
cross-hatched to
indicate it’s locked.