Inovelli could add a mode select to the switch firmware that allows changing up1/down1 from:
a) turning the fan on/off, to b) moving the fan level between 0 - 33 - 66 - 100.
Having it move between fan levels is the most intuitive operation, imo. If I walked into someone’s house and had never seen these switches before, I think that’s how I’d expect it to work.