Fun fact: I've manged to add a couple of custom Dall-E textures through the shortcut method, and seemingly worked. They do appear in the editor and preview mode...
...but once I run the game, they appear as a white block
Is it something to do with how the texure file have been written in the \tiledata.script ?
I've downloaded the texture pack from your games and right now I'm planning to bring back the unused Zortch custom textures, and it would be nice to have a CUSTOM or at least be able to set any custom texture under the correct tab (like if you made a metal texture, you put it under the METAl tab and so on...).