Issue using endless knobs with C6 commands... [SOLVED !]

Cubase
7

Input transformer can do the trick here, but unfortunately just for a single track.
Midi-OX has something similar to the this transformer, but it’s outside of Cubase.

However! You might be able to do some magic using the transformer and just a virtual midi cable, without MIDI-OX.
First, you’ll need a virtual midi cable like loopmidi, loopbe or MidiYoke. I’ve had the most luck with loopmidi, available here loopMIDI | Tobias Erichsen

  1. Create a virtual MIDI cable in loopmidi.
  2. Restart Cubase so it sees the cable.
  3. Create a midi track in Cubase and set its input to be your MPD.
  4. Set the output of this midi track to the loopmidi cable.
  5. Create a generic remote and set its input to be the loopmidi cable.
  6. Place some transformers on the midi track, set to “insert exclusive”:
    A. C96 to C6 & C38 with the value 127 for each.
    B. C97 to C6 with value 1 and C38 with value 0.
    That should transform the value without an external program other than the midi loop cable.
  7. Set the generic remote to receive Relative value.

That should do the trick.