EUREKA. It is so simple & logical when you know what you are dealing with isn't it!!! The first assumption being wrong & it makes it all so confusing.
Thank you so much for hanging in there with me.
I have borrowed a tester and now know that 1 wire only is live, the other 3 are not. So that means the L to L must be live to other bedroom - ....... upstairs again ........... EUREKA. It is so simple & logical when you know what you are dealing with isn't it!!! The first assumption being...
This is interesting - 2 cables on left I guessed as to fittings & 2 on right to mains. So both "fittings" brown wires to both L1s and both "Mains" brown wires to Ls and the short bit across the 2 Ls. All 4 blues are connected together at present - should I have split these too?
Now the left...
No dimmer.
By COMMON do you mean the L on switch (I have 3 on each gang L at top, L1 and L2 at bottom)? Had been ignoring L2 as assumed for 2 way bit.
If 2 wires come out of the wall & jammed into same circle cut out together would they both be the ones from the light fittings, so other 2 be...
I had a 1 gang switch that controlled 3 wall lights & a ceiling light in a bedroom.
I specified the design when barn converted so know there should be 2 circuits, I saw 1 wire out of wall for 3rd wall light & 2 wires for each of 1st & second & 1 wire from ceiling for centre light.
I switched...