Hey Bob,
Are you talking about keying or adjusting transparencies on the top track, or are you talking about merging 2 tracks into one?
Sorry if I'm not getting this, haven't had the coffee yet.
You could use any of the 2D or 3D editors to adjust the transparency of a clip or track.
You can also containerize your clips so they appear as one track on the TL.
Best,
Paul
Paul Mitton
Producer, Pinnacle Certified Trainer.
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