It would be handy to add more tracks in BB, Temper VST will do that but PG needs to fix BB so it sends info to the vsts to sync with the host to stop the cursor looping on the first bar. You can easily drag n drop tracks from BB into Temper then regenerate another track in that BB slot, this will give you as many audio/midi tracks as you like. You can load your tracks from another project an generate BB tracks to fit.

So PG PLEASE fix this bug.