So I've got Protools 10, an eleven rack, and 2 8 channel firestudios. I'm trying to track drums but am running into the problem of interface control. I'd really like to be able to use both interfaces at once though with windows I cannot. I like the guitar processing on the eleven rack but need the 16 inputs on the firestudios for the purpose of drums. Is there a way to use the fire studios and my main interface(s if they can be chained into one, I think they can the universla control) and "sidechain" the eleven rack as a guitar processor. I've tried everything I can think of but nothing seems to work.