Unfortunately this requires scripting. I wrote a tutorial & shared a general template script on the wiki a few years back. You can find it here.
If it's only the language you are wanting to save then it can be simplified down, but if you want to store multiple options, then you will need to write to & read from a config.ini file.
Oh, I've seen this before and tried to figure it out, but I didn't succeed. The second time I think I did it

Thank you so much for writing this script and sharing it for everyone!
I am interested in one question. When I was building the game, I noticed that the config file in the game folder looks like... standard? An unmodified script. And the changed config is stored on disk C in the AppData folder. The game takes it from there and everything works well, but I want to know - is it supposed to be like this or is it a mistake? I would prefer that the correct config is in the game folder.