e.g.
CU -> L1 -> L2 -> L3 -> L4 -> L5 -> END
If I want three of the five to run parallel lamps, e.g at L1, the switch also controls L1a, L1b, L1c, such that the circuit looks like :
Line in - L1 -> L1a ->L1b -> L1c -> END
(and similarly L2 and L3 do the same),
Apart from the usual...