Actually the second breaker from the left is the RCD (after doing some more research) and as I said the left-most breaker is the lights and all the Swiss plugs, then they have added additional breakers on that same circuit (I can’t turn off the left breaker and still test the oven for example)...
I have always had an interest in electrical works and have no problems wiring a new plug or working out how to add a new light socket to the circuit etc. I’ve lived in the UK for most of my life and as most know UK follows good rules and regs with wiring. Spain on the other hand...
Weird type J...