I don't find a way to use this sort of images as tile set for my games.
Is there a way to do it, or should I add all object I want one by one ?
I tried to add a new Grid Tile Set then a Single Tile Group, but if I try to use this in a Tile Map Node, it will use all the image as texture for one block.
I don't know if it's possible, but if you can help me, I would be grateful.
Unfortunately you will have to separate the image into smaller images manually..
The functionality you want just doesn't exist.