Hi, I'm planning to create a backup system for live playing with MainStage. What I have: 2 macbook pro with audio interfaces on both running the same MainStage concert. 2 midi keyboards 2 expression pedals connected to an eowave foot control (USB out) (On tour I sometimes get different keyboards so the eowave let me use the EPeds with any keyboard) What I want to do: I want to send the midi signals from both keyboards to both computers. So in case of a fault on one computer I can switch to the other. when I select a patch MainStage 1 (MBP1) it should also be selected in MainStage 2 (MBP2) My thoughts about it: First the midi things: I need a midi through box with 2I and 4O (couldn't find one but I could use 2 Miditech Midi Thru/Filter) the problem now is the patch changing on the MBP2. I normaly change the patches directly on the MBP1. I need a usb split for the foot control. Don't know if something like that is available. I only found KVM switches. Maybe a iConnectmidi 4+ could do the job? Does anyone have experience with this device? Second the audio things: I need an audio switch with 4 audio In and 2 audio out. Any recommendation for this?