Happy New Year All. I would like to replace my dated brass switches with chrome ones but get confused with gangs and ways. Can anybody tell me the name for these types please... 1. Three switches on one plate - operates outside light, upstairs and downstairs. 2. Two Switches on one plate upstairs - operates upstairs and downstairs lights. 3. Seperate single switch to turn off upstairs lights further along hallway [another one of these downstairs too] Thanks in anticipation.