Question

I have 2 rooms, one that will need more than 16 channels but less than 32. The second room will only need a few. What im trying to do is have maybe 4 channels from the smaller room , and the rest from the larger room.

Answer 1

You can pick inputs from each stagebox, but the inputs will need to be in blocks of 8.  It may be best to assign names to your stageboxes...this will make it easier when picking which inputs to use.  You cannot pick just input from a stagebox and assign the rest to something else.  All has to be in blocks of 8.