Hello! Not a stupid question at all. It comes up so often I've written and rewritten things for chat windows multiple times in my efforts to refine the experience. That being said if you feel that way about your skill level, you may get better help by joining our discord and having someone walk you...

You need to see how the gmcp data is being sent by MM. Then modify the script.

Yeah you need to read the wiki With the IRE mapper you have to manually add the room first then it will map. Same if you want to split the map into areas. Its annoying but becomes muscle memory once you use it enough

You could look at the IRE mapper and go from there. It is based on gmcp. Would just have to see how Mm sends their gmcp info and change it to match.
I used it and converted it to msdp for a mud I play on.

Won't let me post the link but search google for mudlet IRE mapper