Can't use British English/UK spelling

My problem:

(you get the idea)

I can access: English and System Language, and the other usual languages. Switching back and forth between them and restarting the program I still have squiggles over colour and armour and all of that.

I wonder if this is my problem:

I switch between two languages as I’m based in Sweden, but write in UK English. (Since that’s my mother tongue.) Anyway to fix the dictionary issue? Previous googling of the forums offered fixes that haven’t worked for me.

You need Options: then the CORRECTIONS tab, then SPELLING choice at left and change the dictionary to English (United Kingdom-en-gb)

fiixxxxxed thank you.