I'm having the same issue. When wanting to listen to my computer's sound through my 32SC, it uses channel 1 & 2. So, I have to change the source on those channels to USB in order to hear it. I have channel 37 set as Tape and I can redirect Studio One to use that channel but I'd like to not have to change the source on channel 1 & 2 every time I want to listen to the Mac sound. Also, my Helix is plugged in to channel 1 & 2 and it would be nice to jam with music from the Mac but I can't since they share the same channel. I guess I'm going to have to move my Helix to different channels. Curious how others have dealt with this. Thanks! Scott