I suggest that you have the ability to hide a map's code that you made in Map editor. That way, nobody can take it if you don't want them to put it in a tribe house/utility etc. It would be very useful, and you can turn it on and off, depending if you want to show the map code to anyone.

/no support
if you simply just want to put that map in a utility room or in your tribe house (just to try it) cause you think it's lovely (or idk), well you can't.

no support.
if you don't want people to know your maps, then there isn't much reason to make them. i believe somewhere in the ToS mentions that maps created by players become property of atelier801 once they are published anyways. i just don't see a good reason to hide map codes.

you can actually do this with LUA code in your tribe house

no support

If you don't want people to use your maps, don't make them. Seems simple enough.

If people are stealing your maps (as in taking the actual XML and creating your map), report it to a map crew member.