Just out of curiosity ...
... and because there's usually not much feedback when posting questions that involve any sort of interaction with a control surface ...
... and because we had a similar thread over in the VS-700 forum to show Cakewalk that there are people who need more than mouse and touch ...
Who is using any control surface with X2? Which control surface are you using?
I hope to get the post count to over 6000

to show Cake that they need to give control surfaces more attention, especially when introducing new features (ProChannel modules, FX chains, etc.)
BTW, I use mostly VS-700, but occasionally also VS-100, A-PRO 800, sometimes even BCF2000 in MCU mode ...