Yes, anyone may do it.can I move the cooker cable and replace the switch myself.
However, as with all work, you should have the necessary tools and equipment to ensure it is safe.
Same answer.Also can I wire in the cooker hood and install an FCU spurring horizontally off and next to a twin socket with a single socket coming off that at the top of the wall - all this in the kitchen!
For a better appearance, just spur off the socket and put the socket, or just an FCU, at the top of the wall (or above a wall unit).