Apple Final Cut Express 4 - Manual (Page 339)

Chapter 24 Working with Tracks in the Timeline 339
VI
Specifying Destination Tracks in the Timeline
When you edit a source clip into a sequence, you need to specify the sequence tracks
where your source clip items are placed. You use the Source and Destination controls in
the Timeline to specify which sequence tracks receive clip items from the source clip.
Source and Destination controls are most often used when you perform three-point
edits, but they can also affect some aspects of drag-to-Timeline editing. For more
information, see Chapter 26, “
Three-Point Editing ,” on page 361.
Understanding Source and Destination Controls
The number of available Source controls corresponds to the number of clip items in the
source clip currently open in the Viewer. For example, a typical clip has one video clip
item and two audio clip items. In this case, one video and two audio Source controls
appear in the Timeline. If, instead, you open a clip in the Viewer that has one video item
and four audio items, one video and four audio Source controls appear in the Timeline.
Every track in your sequence has a Destination control. By assigning source clip items
to destination tracks using these controls, you determine which items from your source
clip go into which tracks when edits are performed.
Important: If you copy and paste clips, the paste destination is determined by Auto
Select controls, not Source and Destination controls. For more information, see “ Using
Auto Select to Specify Tracks for Selections ” on page 402.
A maximum of one video and
twenty-four audio Source controls
appear in the Timeline, depending
on the number of clip items
currently open in the Viewer.
Source control
Destination control
Timeline patch panel