A few years at Musicmesse Nick was very taken by the Lab4Music approach to making a MIDI router, so much so that he reviewed the Sipario. The Enjoy is another unit which may well take give you some more ideas for controlling your MIDI and CV devices.
Enjoy is a highly configurable MIDI and CV joystick controller which lets you output various different control signals on either cv or MIDI.
More info at Lab4Music
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