Yeah, I realize that now… I originally thought the poster was talking about selecting a track rather than a section… Don’t know why that jumped into my mind.
While we are at it: is there any SysEx message that would correspond to muting a track? There is this message:
but it seems that it only disconnects the channel from the internal sound generator...
Anyway, for some weird reason, I can select "Main A" section from my BCR, but not other Sections. So it works, at least partially, I just need to find a bug and iron it out.