Apple Shake 4 - Manual (Page 559)

Chapter 20 Rotoscoping 559
To set keyframes for all shapes:
m Toggle to Key All Shapes.
When this control is turned on, making a change to any single shape results in the
state of all shapes within that RotoShape node being saved in the newly created
keyframe.
Seeing the Correspondences Between Shapes and Keyframes
When you position the playhead in the Time Bar over a keyframe, all shapes that were
animated within that keyframe appear with blue control points. Shapes that aren’t
keyframed remain at the current shape color, which is yellow by default.
Cutting and Pasting RotoShape Keyframes
You can copy and paste rotoshape keyframes from one frame of the Time Bar to
another. Whenever you copy a keyframe, you copy the entire state of that shape at
that frame.
To copy a keyframe:
1 Move the playhead in the Time Bar to the frame where you want to copy the current
state of the shape.
2 Right-click the transform control of the desired shape, then choose Copy Keyframe of
Shape from the shortcut menu.
Note: You can copy the state of a shape at any frame, even if there is no keyframe
there. Simply position the playhead anywhere within the Time Bar and use the Copy
Keyframe command. That data can be pasted at any other frame as a keyframe.
Both shapes are keyframed. Only the top shape is keyframed.