How to archive Gmail emails to an arbitrary folder?

Hi, I’m evaluating EM Client as a possible replacement to Thunderbird. Certainly more attractive user interface! I can’t find one function which T’bird does have: I’d like to have emails I archive go to a folder which I define (in my case, I have a folder called 2017 Archives. Next year I’ll have 2018 Archives.) These folders are actually stored online in my Gmail account, using Labels. I’m not looking to save locally. How can I do this?