electric switches

I want to replace my single immersion heater switch with a timer one. However, in my current one, I see extra wires that wouldn't have any place in the new one as shown in the pics. The new one only has 1 earth, in and out for the brown one and the blue. The read seems to be connecting 2...

Hiya I've got a light in the loft which has an switch on the landing, I would like to know if I can daisy chain an additional switch in the loft itself so to avoid having to make a 2 way switch circuit, which would involve wrecking my brand new skimmed and decorated walls on the landing. I was...