Clutch mapping to wheel

If you use the thrustmaster wheel, is it possible to use the clutch via one of the buttons on the wheel?
I tried manual with clutch but none of the buttons seems to engage clutch. I am assuming you cannot remap things on the wheel?

I use the B button on the Thrustmaster wheel

Thanks. It seems to engage rear view for me. Did you map it somehow to clutch?

Yeah re mapped it in options, I think Y is now my look back