Is it possible the OP is confusing the Midex with a MIDI router/patchbay? For example, something like the MOTU MIDI Express 128 XT also has patchbay and merger functionality, i.e. you can use a seperate software utility to program patches with any combination of inputs connecting to any combination of outputs, and these will work even when disconnected from the computer, whereas the Midex is “only” a MIDI interface … the only routing available when not under control of a host computer is as outlined by Strophoid above.