Apple Motion 4 - Manual (Page 103)

Timeline
The Timeline is the most general of the tabs in the Timing pane. It can display not only
the visual elements in your project (the layers), but also audio tracks, cameras, lights,
keyframes, and effects such as masks, behaviors, and filters. For more information on
using the Timeline, see
Using the Timeline .
To display the Timeline tab
Do one of the following:
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Choose Window > Timeline (or press Command-7).
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When using a Multi-Touch trackpad, three-finger swipe up or down to show and hide
the Timing pane.
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If the Timing pane is already visible, click the Timeline tab at the top of the pane.
Timeline Layers List
The left side of the Timeline tab—the Timeline layers list—is nearly identical to the Layers
tab in the Project pane. Objects appear in the project hierarchy categorized into layers
and groups. The columns and controls are identical to those in the Layers tab:
103 Chapter 2 The Motion Interface