Is it possible to specify the dimension in which a structure generates?

On 1.20.1, I made a custom dimension with a copy of the vanilla presets in another dimension to create a parallel world.
It works.
Now I would like to make structures from the mod L Ender Cataclysm only spawn in this dimension.
I edited the files in .jar of the mod data>cataclysm>worldgen>structure.
I can't just replace the line "biomes" since I use vanilla biomes in this world.
Adding a line   "dimensions" doesn't seem to work. I have the strucure in the overworld + the parallel dimension and I only want it in the parallel world. How can I do this please ?