Anyone who knows me knows that I've been breaking my head and trying to do that. Thanks to the code of Rexal that I studied I went able to understand a little more and get complete my code.
Free for commercial and noncommercial use
Do not delete the names on special credits...
It's always a good idea to refresh yourself on what your plugins do. I'm working on a map with opening walls, and I was about to tear my hair out over how much image editing and hand-constructing of autotiles I'd have to do, when I looked again and saw @Shaz 's Tile Changer could copy areas from another map.