Apple Final Cut Pro 5 - Manual (Page 688)

Chapter 19 Learning About Trimming Clips 353
III
When linked selection is disabled, extend edits are very useful for creating split edits.
You can also use extend edits to quickly line up a lot of edit points to the same position
in the Timeline. For example, to make all of the clips at the end of your movie end at
exactly the same place, you can select the last edit points in each track in the Timeline,
move the playhead to the position where you want all the clips to end, and then use an
extend edit to move all of the edit points to the playhead position at once.
To use an extend edit to change the duration of a clip in the Timeline:
1 Select the edit points for the clips you want to extend using either the Selection tool or
the Edit Selection tool.
Note: To create a split edit, disable linked selection by clicking the Linked Selection
button in the Timeline, or hold down the Option key to temporarily disable linked
selection while you select edit points.
2 Move the playhead to the position in your sequence where you want to put the
selected edit point.
3 Choose Sequence > Extend Edit (or press E).
The selected edit point is rolled to the position of the playhead.
If you selected multiple edit points on clip items on several tracks using the Edit
Selection tool, all of these clip edit points are moved to the position of the playhead.
Note: If you try to extend an edit farther than the total amount of media available in a
clip, Final Cut Pro does not extend the edit point.
Before
After
This clip shortens. This clip lengthens.