Hey Charlie, thanks for your response. This is useful info I wasn't entirely aware of. I know about instrument medleys, if you will, in BiaB, but not the level of sophistication you're talking about. But I don't believe it addresses my problem, which has to do with portability. Simply put, the BiaB mixer is too confining for my purposes. And not being able to move a more complex piece back and forth between BiaB and my DAW is limiting. With this one piece I'm working on, I'm having to use three different versions of the piece in BiaB, exporting portions of each into CW, where I recombine them into a larger work. As it so happens, I felt the need to expand a section of chorus, so I've had to import these three different versions into CW to patch into my CW mix. It works okay, but it is time consuming, requiring a fair level of attention to detail.

I guess I need to view some tutorials on the topics you mention. But still, I'd want to be able to separate out the instruments that are bundled within tracks. If that can be done, that would be really useful then.

Best,
Michael

My Music:
https://soundcloud.com/michaelmcbroom/albums