World Gen for New Dimensions

I have recently started working on a mod (using mcreator) in which the main concept is a new dimension that is (at least somewhat) synced with the overworld.  I can get into the complicated bits of making changes sync between the two later but first I need to make sure they start the same.  I was wondering if it would be possible for me to pretty much copy the overworld generation so that I could use the seed to have both dimensions generate the same way. (not necessarily limited to mcreator features)

Any help (ANYTHING) would be greatly appreciated as this has been eating my time up