Currently the returns/inputs from the CS18AI use up one or more of channels 1 through 4, or channels 31, 32 and DR. It would be much more useful to be able to select these inputs on the RM channels 17 through 32 so that analogue inputs aren't used up on the RM mixer. Users would then get a true increase of 4 analogue inputs to their RM mixer, very useful for studio situation, or even live when wanting to add two more mic lines and a line in feed from the CS18AI.