So if I understand correctly, if you are a registered, say as a Tory, you must vote a straight Tory platform?, You can’t split and vote one Tory, one conservative?
Hmm, no write in?
It’s been years since I learned about Parliment, but I never learned about the elections other than seeing them on TV and in an episode of “Blackadder”
There are no party registration requirements, party membership is purely optional.
Even if a party member you can vote however your heart desires.(If you can look yourself in the mirror afterwards.)
One vote is all you get unfortunately. (For your local MP).
Write-in would be nice but isn't actually necessary, as anybody with £300 can stand for Parliament.