5

You can see in the screenshots below that changing the duration of an object has no
effect on keyframes applied to its parameters in the Properties Inspector. Object parameters
such as Position, Rotation, Scale, Opacity, and so on remain unaffected.
Trimming Objects Without Retiming Keyframes
If you press Command while resizing an object bar with effects applied in the Timeline,
the object is trimmed without altering the timing of its keyframes. This works similarly
to trimming a group without modifying durations of the component elements.
You can also prevent automatic keyframe retiming by pressing Command while changing
the duration of an effect object bar.
Animating in the Keyframe Editor
When you create two or more keyframes, Motion generates interpolated values for the
frames that come between. These are called curves. The Keyframe Editor is where you
can view and modify these curves, which is one of the most sophisticated and powerful
ways to animate objects and effects in your project.
595Chapter 12 Keyframes and Curves