Hi, im hoping someone will be able to solve this problem that im having. I have moved into a place and want to put an outside light and a light in a little lean to which is on the side of the house. At the moment i have the kitchen light which has two switches either side of the room but want to put a 3 gang switch to replace one of the single switch. Can someone explain how to wire it up, the new switch has 3 coms at the bottom and 3 L1, L2's at the top. Many thanks