I set top button as room on, but not as a toggle, a single action.
This sets the room or area to the day to day setting the homeowner likes.
If you want to get a bit fancier, you also set this based on a day or night setting.
Only other thing added would be a double tap to bring lights up to 100%
Bottom button also a single action, room or area off.
Clients that have a hard time with the idea of scenes, and end up wanting buttons for fixtures instead, even they seem to grasp the room on and off buttons.
The whole idea of a lighting control system is to make things easier, and with home run type of systems it also gets rid of wall clutter too.