1,2,3) Yep all of those are not implemented Check the first post for a list of everything that works haha
4) There isn't a grey background. The tileset image is transparent in some areas. Those tiles were meant to be placed on Layer > 1
5) There aren't any bugs that I know of with Layers
This may sound stupid but this is how it works
Ok so when you first create a map and load a tileset the default tile is 0 so you start out with a map with one layer that just has tile 0 in it.
When you create a new layer it just contains tile 0 in it (in this case its the grass tile) and this new layer draws on top of previous layers
so when you create a new layer you have to fill it with a completely transparent tile
You can switch the layers you are editing by going to Map > Layers and then selecting the layer you want to edit.
yeah thats one workaround and the other is to just make tile0 in the tileset image be completely transparent
I used to do it the other way where I have a tile called tile-1 which was completely transparent but people complained about that system where in the tile window will I draw this tile so that it can be selected? Another map editor program called Mappy just drew that as the first tile and that ruined the alignment of the tiles and I don't like that and neither will users
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But yeah theres the story on that
Also thanks
!