There should be a way to view and control all DCAs through the TouchScreen of the R72. It appears that DCA mutes can be assigned, but they cannot be controlled if they are not assigned to a strip. This is required because I control some DCA mutes from PL-10 buttons, but if someone mutes something from a PL-10 and that DCA isn’t mapped to an R72 stip and I can’t get to the PL-10, then it would be quite embarrasing — the R72 should be able to do (and un-do) anything a PL-10 can do (without having to assign each DCA mute, one at a time, to figure out what’s doing the muting).