configuration option to generate gems in other dimensions?

[AbsolutlyN0thin]

• The version of the mod you are using (1.10.2-1.0.0)
• Your Minecraft version (1.10.2)
• Your Forge version (12.18.3.2511)

I would love to be able to generate the gems in other dimensions and have a config option for it so I could say have rubies only generate in the nether, and the rest in the normal world; or just have them all spawn in all dimensions. I noticed in the code you use world provider surface to generate as of now, so it may not be easy to do just any dimension (such as those added by other mods), but even adding the nether and the end would be awesome.