I need an audio patchbay and i was wondering how hard it would be to make the following: I would like to have/make an audio patchbay (having a yet to be determined amount of ins/outs due to any diy building difficulties) that has the option of routing any input to any output digitally. No hardware switches or anything, just hook up all the ins and outs and patch everything through a menu. Ideally, this routing should be done on my Macbook Pro using a software mixer (similar to the Cuemix soft