Hello,
As far as i know Arturias controller manuals explain each setting.
1. MMC = Midi Machine Control. You can look it up on the web, if you need more info than the controller manual provide.
2. Off = Off - the hardware control is switched off. Not in use.
3. Patch Change = Midi Bank Select and Program Change message. It's about selecting presets where it's possible to use this message. Look it up on the web, if you need more info.
4. Switched Control = It work like a Switched control.
5. MIDI Note = Trigger a specified MIDI note.
What more explanation do you need, that your controllers manual does'nt provide allready?