Since you can open up the Piano Roll window and edit the midi part like a midi bass, can't you do a copy/paste there? I've never tried that but the notation and piano roll are editable so that might work. Not the whole track in one shot but still usable. I know you're asking about Biab but this is a no brainer in Real Band.

Bob


Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.