Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General How to edit maps done by someone else ?

Hi all & sorry for this noob questions. Is it possible to edit the maps available in the GM tool : those made by Larian and any other map made by the community ?

They are gorgeous, but I would like to change a couple of details, add NPCs...

Thank you !