Apple Motion 3 - Manual (Page 338)

338 Chapter 4 Using the Timeline
To rearrange objects within a group:
1 Click the icon in the Timeline layers list for the object you want to move.
2 Drag it to the position you want between the other tracks.
3 When the position indicator appears in the location you want, release the mouse
button.
The tracks are reordered.
To move an object from one group to another existing group:
1 Drag the object icon in the Timeline layers list over another group.
A black border highlights the group.
2 Release the mouse button.
Before After