How to add tiles to tileset

In this case, you’d need to make sure to add the additional tiles to the image without moving any of the existing tiles. I realize that this may be challenging to near impossible, depending on whether your texture packer has a kind of “stable add” mode.

I’ve written about the workflow I would recommend when using texture packers before, and it was nicely summarized by @sumowrestler here:

Relying on an image collection tileset in Tiled while using a packed texture in your game gets you the necessary flexibility in Tiled since you can add/remove tiles at will while at the same time having your assets optimized for in-game rendering.