As title suggests, allow it so we can have the client read the maplist from our side and to allow us to put our own maps in to try them out. This would make UGG more developer friendly and bring many good devs to the server. Not to mention more member of the community could participate in bringing a good map to the server. A map which belong to this server only!
It will never be possible, because if you give the first plays permission to modify a file is not only a file but all files that would make had the anti hack and more modified taking the game to bankruptcy.
Right now player can already replace Mansion.mrs with your own .mrs file, but server notices and kicks you out. All my suggestion is saying is that if certain conditions are met: 1] Password Game 2] Training Mode Only then it would allow the game to be make without recognizing the .mrs file. It is my understanding that this sort of change would be little or low development work and yet it would provide a lot of use.
I do not think we would ever allow people such access to add their own maps, especially because it would be pointless if you tried to make a room and the map was unavailable for other members.
Just want to add:
You can upload this map to 'Developments and Releases' section,there's a chance that we can add the map,it happends if our dev team like the map.