Hi Mac,
that would be brilliant.
Luv to know if it's just me, (not too cluey on sysex, hex codes etc) or whether it is a bug.
With my Korg PA800 as controller , the setup works perfectly, I don't need to worry about muting channels, i set the channels the sd2 receives via the korg, but with the psr as controller, it doesn't have the same midi functions as the korg, and being able to mute , or set sd2 to receive on certain channels would be so handy.

best wishes
Rikki