An IDCA that will be all instruments except for the drums and an IDCA for just the drums. An IDCA that will be all the other vocals. An IDCA for the individual’s mic only, the more ME control. For example - The IDCAs will be set up something like this. I set up Layers in MS using IDCAs so the user doesn’t see all of the channels available on the screen they see faders that control the different groupings. I set up Mixing Station (MS) for a church for them to use it to control their IEM mixes.