[MonkeyEngland]

I have done all of my progress on ALiquam on this one world.
When I joined I plot regened do I could get an air world.
Now I have seen what my structures look like, I've decided to fill in the ground underneath without losing all my stuff.
I have tried WE, but it takes too long.
Is there a way to (quickly) put a superflat world under it without deleting all my buildings? 

-Monkey 

P.S. Does it work so I can customise how many blocks deep it goes? That would be Great! (Guessing that it's possible )

[Takkita]

go to one corner //pos1
go to opposite corner diagonal //pos2
//set grass

Try your best to keep it at one or two levels of grass or it'll take ages to complete. Either way it'll take time so be patient.