Hi, Currently my switch is like the picture below com n L1 cabling. Problem is how do I map to N, L, L1, L2, L3. I linked com - N n L1 to L1 to L3 n L3 to L extra cable. The switch lit up but then the light not switch on or light up. Can help? Many thanks in advance Current switch http://www.doityourself.com/forum/electrical-ac-dc/538143-2-gang-3-gang-light.html#b New switch: N, L, L1, L2, L3