Apple Final Cut Pro 5 - Manual (Page 86)

Chapter 6 Viewer Basics 85
II
There are several playhead sync modes available:
 Sync Off: The Viewer and Canvas playheads move independently of one another. This
is the default behavior.
 Open: As the playhead moves through your sequence, the clip that appears at the
current position of the playhead is automatically opened in the Viewer. Playhead
sync between the Viewer and Canvas is maintained so the same frame is always
open in both windows. This method is useful when you need to quickly adjust filters
for a number of clips in a sequence, such as for color correction. Multiclip playback
mode also enables this playhead sync mode, so you can view multiple camera angles
in the Viewer while you watch the active angle in the Canvas.
 Gang: This mode allows you to establish an arbitrary synchronization between the
Viewer and Canvas/Timeline playheads. Each time you choose this mode, the current
position of each playhead is used to set the sync relationship. For more information on
ganging, see Volume II, Chapter 24, “Matching Frames and Playhead Synchronization.”
Recent Clips and Generator Pop-Up Menus
The two pop-up menus near the lower-right corner of the Viewer let you quickly
choose source clips and generators.
Generator
pop-up menu
Recent Clips
pop-up menu