Just having a quick look at this to try and identify circuits from the colour of the fuses (cartridge or wire, not sure which).
I know these are getting less common as time goes on, but it would be helpful dealing with old installations.
I think that red dot is 30/32 amp for ring mains, white dot is 5/6 amp lighting.
However there seem to be two blue dots.
White-5A Grey-10A Blue-15A Yellow-20A Red-30A Green-45A
As far as I know there is 13 amp, lighting, an electric oven from Ikea (which may or may not be 13A), a combi boiler (which may or may not have its own circuit) and an electric shower which should have a green 45A.
There are two red dot, one white dot, and two (apparently) blue dot.
More later.
Cheers
Dave R