Sam is adding a MIDI driven Talker into the Factory Setup 1 for you. You won't be able to switch instrument with it (oddly, and this is a bit of an oversight, that's not possible from Belcanto right now) but it will have all the tonics, a bunch of scale changers, metronome start/stop configured on MIDI notes for you.We'll try and get this into the current unstable release in the next few days, probably alongside Aaron's new MIDI clock in (to enable EigenD to slave to external MIDI clock) code as they both use the MIDI input. Please remember that the unstable release is what it says it is - it has a bunch of new stuff in and is not yet well tested so your milage may vary...
Sam will post a MIDI in chart here later. And you're quite correct, this is the kind of thing that will become available to users to set up themselves over the course of the year. In fact, if you had any useful documentation to tell you how to do it, you could do it now using the new Commander in the unstable release. We'll be starting on documentation for this kind of thing very shortly.
John