Apple Motion 3 - Manual (Page 318)

318 Chapter 3 Basic Compositing
All the layers in the project temporarily scale down and spread out over the Canvas.
Each layer in the project is represented by a white frame in the Canvas. Moving the
pointer over a frame shows the layer’s name.
3 Select the layer you want to work on.
The layers move and rescale back to their original positions, the element is selected in
the Canvas, and the playhead moves to the first frame of the selected layer.
Exposing Active Layers
The Expose Active Layers command lets you view the layers that are active at the
position of the playhead in the Timeline.
To expose objects that are active at the playhead position:
1 Click anywhere in the Canvas.
2 Press X.
All the layers active at the current position of the playhead temporarily scale down and
spread out over the Canvas. Each active layer is represented by a white frame in the
Canvas. Moving the pointer over a frame reveals the layer’s name.
3 Select the object you want to work on.
The elements move and rescale back to their original positions, the element is selected
in the Canvas, and the playhead moves to the first frame of the selected object.
Exposing Drop Zones
Motion templates often contain drop zones where you can drag and drop your own
image objects. In addition, you can create your own drop zones in any project. You can
use Motion’s expose feature while dragging items from the File Browser or Library into
the Canvas and be automatically presented with an exploded view of the valid drop
zones in the project.
Canvas after invoking Expose All Layers command Canvas before invoking Expose All Layers command