Ok,
I am getting somewhere.
I made a "style" in BIAB that only has drums and exported "Mod Country" as a midi. (Saved as.)
In Sforzando player with "BIAB" rock drums it is not too bad. It sounds horrible in Session Drummer though, but I may need to experiment.
However in Real Band, it will not generate a Real Chart, though I know it should. I think that is a glitch, because yes, it does show up in notation in BIAB.
What does the "x" mean by the way in the drum picker? Don't laugh. The other columns seem intuitive.