At the moment I use dial positions 1 and 2 as "Defaults" for what I want in general. Nothing specific. Aperture priority, f/1.4 etc.
I can detail more if you are interested.
I noticed that when I change the parameters like for example, exposure compensation and / or f/5.6 and / or focus mode even if I switch off the camera, the settings are kept. Great.
The camera remembers my last changes until I rotate the dial to 2 and back to 1, which means I am again to my "default" settings whichever they are.
Did I explain myself correctly ?