The midi map of the midi interface you choose "behringer Xtouch compact" had not been designed to be able to control the programmer part.
It is only for live control, where it allows you to be much more reactive on controls than using the mouse.
If you want a midi controller allowing you to control the programmer you should have a look at the elation midicon pro.
Now if you want to be able to control the intensity of a group of fixture with a fader, select the fixtures, set the intensity to full in the programmer, click on record and then on an empty fader.
You have now a cuelist with one cue controlling intensity assigned to your fader, Clear the programmer, and start the cuelux by clicking once on the red square above the fader.
The fader is now controlling the intensity of your fixture.
You can also go into the setting of the playback fader by double clicking on the red square above the fader and activate the "fader start" option. This way the cuelist will start automatically as soon as you move the fader up.
Enjoy
