Zoom all tracks

Is it possible in FCP to zoom, actually pull, multiple video tracks into a single, underlying video track? Think a reduction swirl of five individually rotating planets, each an .mov file on its own video track (2-6), into a black hole that is a void area on a counter-rotating starfield that is itself a .mov on its own separate video track (1).

Possible. with nesting, but would be much easier and more professional looking if this was done in Motion or AE.

Motion it is then. Thanks.