worldgen How would I create a new world on a dedicated server using existing world config?

[mudkip989]

I have a Dedicated server and I want to be able to set the world generation settings before any chunks are generated. Since there is also a mod involved I was hoping I could run a command and reset player data and chunks (While swapping seed). Ideally I would like to take the world config and put it into a new world. I want to adjust the amount of land cover without creating any sort of generated bubble around spawn and removing player data.