Generate autotiles 2x2/3x3min from sprites whith 5 tiles or 3x3 from 8 tiles, and add to tileset.
The autotile name defines the name of the sprite from which it was created.
You can add autotiles to an existing tileset. Old tiles can be replaced with new autotiles if they have the same name.
Source 5 tiles
Result 2x2 variant 1
Result 2x2 variant 2
Result 3x3 minimal
Source 8 tiles
Result
For correct display of 3x3 autotiles, cell size in TileMap must be 2 times smaller than tile size
Tutorial
Added the ability to copy collisions from a sprite to an autotile (experimental):
Turn on "Copy Collision"
Source
Result
