I do actually !
I worked my way into the tilemap > 3D models on a grid.
What I don't seem to grasp is : how do I get the tilemap from Edgar ?
I know it will be obvious when you'll say it, but, can you give me some pointers ?
Thanks !
EDIT : nevermind, I found it !
I thought that, as var tilemaps = level.GetSharedTilemaps() gave me a list of six, it wasn't that.
But the six elements are the layers used in the room templates, duh.
Will report back when I have a complete working solution.