I noticed in the vMidibox software that you can set a pot to NRPN and RPN, LSB and MSB, but it doesn’t look like one pot can function as an NRPN controller.
If it isn’t possible now, would it be possible in the future?
All MIDIboxes can send NRPN by using “Meta events” (programmed sequences of MIDI events). However, MIDIbox64 works with 8 bit resolution internally, the max. resultion is 10 bit, but this requires some additional programming effort.
MIOS offers 10 bit by default (see Concepts->MIOS->Status)
For higher resolutions it’s better to use rotary encoders, because more than 10 bit cannot be handled by affordable pots/faders