I don't want to create 4 scenarios for handling 4 individual lights.
The plan idea is OK.
I guess I expected that when I hover over a light button, a selection of waht is available would pop-up (like when their are submenus on the windows start menus of the kde ones.
It seems incredibly cludgy once you have selected a room, not to be able to control the lights or appliances individually from the UI.