How do you achieve midilearn with X-touch one's fader or the rotary encoder?

[Rosetree]

Hello～

A friend of mine whom I am currently making a track with got a X-touch one.
I am trying to map the midi configuration so that I can use the fader or the rotary encoder to control fx parameters, but no luck so far.

Considering it is midi-based, it should be completely possible to do that, but I am not succeeding as of now.

If anybody can show me how to achieve that or links that show proper procedures, I would really appreciate it.

Thank you in advance and have a great day.