I have an SL61 MK1, so it's the Zero with a keyboard. I don't install the Novation drivers any more.
This unit shows up as three midi input devices (keyboard, external midi IN on the unit and the control section as the third input). I enabled that third input for control input only.
It works very well for controlling all kinds of stuff. I use the (non-endless) knobs for controlling send levels on selected tracks. You can swap out the knobs for chroma caps too.
If you need lots of endless knobs, the Arturia Beatstep (with chroma caps if you like
) is an inexpensive solution with a great editor.