We have been using UAD Apollo rack mounts and AutoTune RealTime extensively. It’s best to view it as some kind of outboard gear with multiple outputs. Once you achieve your preferred method of getting signal into the UAD hardware (it often becomes confusing as to where to place the computer and we ended up needing two computers with screen sharing), use the UAD “console” app on your Mac to assign other mixer channels to the same input (if you’re using a twin or other small unit just create some virtual channels instead with the same input but you’ll probably have to get tricky with the output assignments). You can then choose to either add plug ins to those channels or not. In this way you can route wet and dry signal wherever you need it. Also, I personally have spent many hours discovering how to run AutoTune RealTime with MIDI. Otherwise you need a dedicated person to stand there half of the time to change keys and tweak things. Mixers have enough other jobs to do these days. There is NO documentation on this anywhere by the way.
