I know a lot about Reason, so I'll see what I can do, as far as connecting another Matrix to a Subtractor, just hit tab, and you click and drag from the Matricie's Note, Gate and Curve CVs up to stuff, as far as a notes, hook the two Note things together. I'm sorry I can't I can't give really in depth instructions since I'm in school, I dont have access, but if you Create a Matrix right under a subtractor, then it should automaticlly hook them up.