What will be coming into the 3 gang light switch I have 3 red wires 2 black wires 1 blue and 1 yellow (as well as the earth wires). My switch has (top) 1 way, com, 1 way, com and 1 way - (bottom) 2 way, 2 way, com and 2 way. How do I wire this up? I have 2 lights that need to be 2 way and wall light...