1.By default the drums are assigned to MIDI Channel 10. Sometimes it is
desirable to have simultaneous access to two drum sets. If we wish to
assign channel 11 to play drums, the complete SYSEX message will be:

F0 41 10 42 12 40 1A 15 02 0F F7

Different Program changes for the drums in Channel 10 and 11 will
allow us to play two different drum sets at the same time.
2.Press record on the G-800 and switch macroeffects in the Mixer. Save song. Load song in Cakewalk and listing SYSEX messeges. Remember numeral and insert where is necessary.