I’m perfectly happy with the latest Aeros mode and the way I can control the BB/Aeros combo. I have one wish, though, and that is to mute the BB while the loops keeps playing, so that I can bring drums in and out during a song. As I understand it, this can be done by enabling the mute pause in the BB settings, and the use CC111 (0-127) to engage/disengage that mode.
Making a custom mode from scratch seems a far stretch to me, so I wonder if it’s possible to copy the Aeros mode settings to a custom mode and go from there, leaving only the BB mute/unmute function to be entered.