[Zubersoft]

Well, if I just look at the MIDI implementation document (https://www.roland.com/global/support/by...s_manuals/), it shows that you can change the bank by sending a patch select command from MobileSheets (which consists of two control change messages followed by a program change message, which is what the documentation mentions under "Bank Select").  While you can control a fair number of other things through MIDI, that is the only section relevant to what you are wanting. You can control which bank is used, and which instrument from that bank by changing the MSB, LSB and value parameters of the patch select message in MobileSheets. Let me know if you need more guidance.

Mike