assign a MIDI controller to the Control room Fader

Hello,
I trying to assign a MIDI controller to the Control Room Fader and Master Fader. I cant figure it out. I have a KX61 any help appreciated.

Thanks
BF

do it with generic remote in cubase

Thanks.
I figured it out but now it wont recall my changes after I close Cubase and reopen. I even renamed the patch but it dose not show up upon reopening the project.

bf