Customize ore-gen? (big-dig?)

[Spad]

Hi, so ive been trying to find how to customize ore-gen and i really cant seem to find how to. Is this easier to customize in technic? I got Infinity Evolved and similar packs installed. Do you guys know anything about this? Thanks!

 

[GamerwithnoGame]

This thread might be of use for you?

https://forum.feed-the-beast.com/threads/cofh-world-generation-users-manual.48678/

Its a bit old now, but I believe it still applies - while things work differently in 1.10+, I think those differences are discussed in the thread?