Nice, I'm gonna give it a try.
Of course I'm crediting you for it (I mean, I just change the way I'm using it, you're the one who actually did all the hard work).
I'm currently trying to optimise my project, and make things a bit easier for me.
Note tags tend to make it harder to keep tracks within the editor (and the maps Note area doesn't help either) compared to have everything in the same place.
Thanks for the advice. I'll see if I can figure something out.
If it doesn't go smoothly enough, I'll just give up, I guess.
EDIT :
Alright, still gonna need to run a few more tests to make sure, but it looks like I got it working without too much trouble (although I simplified it to only manage one extra map per map). I did manage to keep it within the loading process, so there shouldn't be any delay problem.
I also kept the name parameter, it does help to keep tracks better than only map ids.