I hate disagreeing, but I use my AC-7 HD inconjunction with my DM remote layer in my DAW. Not for any other particular reason then just for parlor tricks and too impress the women folk (doesnt work). Usually, my remote layer is already up and I just start playing with the ipad. But, it probably depends on which DAW you use. I can literally move a fader in AC-7, which moves a fader in my DAW which moves the same fader on the DM. Fun for all. Scares the dog,
Yes, you can move all the faders in a session, but just 8 at a time. They didn't want to fit 48 faders on one ipad display. So, I might have faders 1-8, then I hit either ">>" wich moves all 8 to faders 9 through 16, etc., or I hit ">" which moves everything one fader at a time.
I also have a TranzPort as well (which I originally bought for this purpose a few years ago) which is just fine. But my company gave us all ipads for work so I figured it would be fun to try out AC-7. Now I use that all the time.
I think I had a conversation about routing tracks in your daw to send out to other's headphones, which could be controlled by the ipad. In REAPER, there are "Track Folders". I don't know what they are called in your DAW, probably busses. Anyway, any track within that folder will only play through that track folder, and then out from the folder to the mains. Lets say, for example, you have 5 toms. You might mic each tom, and have a track for each tom, but you may also want to gate, compress, and add verb to said toms from one spot. In a track folder, you can add your gate, comp and verb to all 5 toms before the signal goes to the mains.
Well........
You could assign the tracks that you want to monitor to specific folders, then assign the outs from those folders to specific DM inputs, which could then be assigned to specific aux outs to specific sets of headphones, the faders of which could be controlled by your iPad and AC-7. I was thinking along those lines.