Its pretty old post but is it still true? To me it seems that channel select follows project window. Im strugling with cases wher ein proj. window is vst with multiple outputs or where are midi tracks. And if I make then invisible in mix, cc121 still follows them which is anoying.
I would prefere the way that I can set CC121 to follows mixconsole, because this is the moment when Im using fader and EQ, but currently i still need to switch between track by mouse, which makes channnel select buttons useless.