I created an issue on github regarding adding possibility to “move” tiles in tilemap (or cut, delete tile(s)):
Here’s the informative part of the response for other forum visitors (or future me ):
Currently, the Tilemap editor in Defold is still lacking a lot of useful features, BUT recently the team started updating it a lot, for example there is now option to rotate tiles or select multiple tiles in pallete and use all of them like a brush:
Added ability to rotate and flip the brush when painting in tilemap.
Now it’s possible to flip and to rotate the brush when editing tile map using the following hotkeys:
X - flip the brush horizontally
Y - flip the brush vertically
Z - rotate the brush 90° clockwise
“Added the ability to select a tile region in the palette map as a brush
Now it is possible to select a few tiles in the palette as a brush.”
Although, if you are looking for some more features regarding tilemaps, you can use:
Sprite Fusion - online tool, really nice, with export to Defold: Sprite Fusion
LDtk - doesn’t have direct export (yet?), but LDTk files and Defold Tilemaps are both text files with specific rules describing tilemaps and I believe it is possible to make a parser / an importer pretty easily (maybe someone in community will do it some day): APIs – LDtk