I should be able to make up my own Real(MIDI)Drums with a midi midi file, the same with UserTrackDrums, but I can't so I made a tutorial
Jamstix, EZDrummer..etc Fitting Drum Tracks Quickly to BB Chord Sheet
If we could do that users could upload and share their midi drum styles that would just generate up directly in Biab/RB without having to generate in Reaper then import into Biab/RB.

Though I could make one up using AutoHotKey that will read the SGU MGU same as Open Biab SGU MGU etc.. in REAPER , that will then just read the Part Markers and create the midi drum file that you just Drag n Drop into BB/RB.