View emitter or cell keyframes in Motion
You can also animate emitter or cell parameters using keyframes. When you do so, a curve describing that animation is available in the Keyframe Editor. The selected object determines which curves appear in the Keyframe Editor (when Animated is selected from the pop-up menu in the top-left corner of the Keyframe Editor). For more information about animating with keyframes, see Intro to keyframing in Motion.
Display keyframed emitter or cell curves
In Motion, do one of the following:
Display keyframed emitter curves: With the Keyframe Editor open (press Command-8 if it’s not already open), select an emitter in the Layers list to display animated emitter parameters such as Position and Rotation (in the Properties Inspector) or Emission Angle and Range.
Display keyframed cell curves: With the Keyframe Editor open (press Command-8 if it’s not already open), select a cell in the Layers list to display animated parameters such as Birth Rate or Angle.
Note: To view a specific animated parameter in the Keyframe Editor, click the parameter’s Animation menu (the down arrow that appears when you place the pointer over the right side of a parameter row in the Inspector), then choose Show In Keyframe Editor.
The parameter is displayed in the Keyframe Editor in a new, untitled curve set.
For more information about keyframe curves, see Display the Keyframe Editor in Motion.