Do you tap rooms or individual elements?

Im new to floorplan, i setup my floorplan yesterday and so far i am tracking my light groups based on the whole room so tap a room and the lights go off and on.

Is this the correct approach or am i better off tapping individual lights instead?

Can you tap both the room to switch all lights on or tap individual lamps to toggle their status off/on?

I would like to incorporate other elements into my floorplan but just wondering how to go about it.