Here is one way you can move objects around
on the Stage:
Try a simple example in a frame of your comic strip. Make the sun rise behind a character.
 
> First, go to one of the slides in your comic strip.
  > Then, on the Stage use the Oval tool to create a circle at the bottom of the Stage.
  > Next, click on frame 10 in the Timeline and select <Insert > Timeline > Keyframe>.
  > Then, highlight frames 1 through 10 and select <Insert > Timeline > Create Motion Tween>.