OK sorry did not read the post well.
Pro works somewhat different then AE as its a NLE. AE is not.
Clip in track one.
Make white shape in title
Set it in track two
Nest clip in track one.
Go into nested clip by double clicking
Add shape to track two and lower opacity.
Animate clip.
When done pook the eyball of track two.
Back into main sequence
Add Track Matte effect to clip and
set it to the shape.
If you want three different clips to animate within a shape.
You need to repeat the proces twice.
Track 1,3 and 5 will contain the nested sequences
Track 2,4 and 6 will contain the shapes.
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