Apple Motion 3 - Manual (Page 510)

510 Chapter 6 Keyframes and Curves
2 Place the playhead at the starting frame.
3 Place the object in a starting position.
4 Move the playhead forward.
5 Drag the object to the ending position you want.
6 Click the Record button (or press A) to turn off keyframe recording.
If you play back your project, the object flies from position one to position two over the
interval you set. You can see the path the object travels by turning on the Animation
Path setting in the View pop-up menu above the Canvas.
Important: When Record is enabled, you can choose to only add keyframes to an
object’s parameters that are already animated. This option is available in the Recording
Options dialog. For more information, see “
Recording Keyframes on Animated
Parameters Only ” on page 562.