rharv - thank you as well. The "make all tracks regular BB tracks" does not change the way the file is saved - it still separates into 5 channels in a differnt sequencer. If .MID is chosen then all the tracks are saved (merged) into one file. If Type 0 is chosen then the a single BB track is saved (but is split into several channels).

I will repeat the above with "Prefs File tab to Rechannel all MIDI data on a given track to a single MIDI channel when saving" as suggested.