It would be great if we could change the biome at specific x z coordinates this would be really cool
Issue comments
Checking now this method would not work, things changed a lot since when this started.
External programs could modify this, but there is no reliable or tested method to do this during runtime.
https://forums.minecraftforge.net/topic/83089-1152-is-there-any-way-to-change-blocks-biome/
Maybe if this gets added there would be a standard API for this: https://feedback.minecraft.net/hc/en-us/community/posts/360011441272--setbiome-a-command-that-enables-you-to-change-the-biome-of-a-specific-area
Worldedit is during runtime and is open source code...
Provide the code and I will add this. I am very busy atm (working on MCreator and 8h job at a company I do an internship during this summer) so some help can go a long way.
Also quick check shows it is bukkit so I don't think you can port this to forge (also worldedit code is licensed under GPL-3.0 so larger snippets of code is no-go).
This might be possible. I have found this code, but I did not test it yet:
If I find a way to get this work we might add this in the future updates.