The only way to vote

[Ialtog]

I was working on the elections.

Cessna, I've been following these elections closely (I am kind of an election junkie) and I have a question for you that others may have as well.

I am really struggling with understanding who people are voting for and how the various constituencies, regions, et cetra all work. Correct me if I am wrong here:

There are 73 "constituencies" in Scotland. A person living in, say the constituency of Aberdeen Central, would vote vote for the one person on a slate they would like to represent them in the Scottish Parliment. This is a "first past the post" system, with the candidate with the most votes winning outright.

Now, this person in Aberdeen Central is also part of a larger "region", of which there are eight in Scotland. Aberdeen Central is part of the North East Scotland region. So, the voter would also mark their preferences for the various parties running. They don't vote for an individual here, right? In the end, each constituency sees the top vote getter going to the Scottish Parliment, and each region also has a "regional representative" go to the same Parliment?

But if this was a national election, the voter would be ticking off a check next to a candidate who would represent a different constituency altogether, as the Westminster elections have different constituencies than the "local" elections?

Sorry, but for some reason I cannot wrap my mind around this and I sure would appreciate any clarrification on how it works there.