FJ.

As Soolan stated, you can import a midi file to either the solo or melody track, paying close attention to the inputs.

Then go to the EDIT menu and click on Copy/Move tracks and move the file from the melody track to your choice of any other BB track. The help menu will clarify.

Be sure and freeze the new BB track.

This is the track-to-track copy/move delete function you probably want.

Audio tracks can be imported to overwrite or merge with existing data, but there is just the one Audio edit window. I've tinkered with moving audio to performance tracks, but you're probably better off doing the editing in RB.

Percy