Make Creative Flat?

[TWolfWD]

Alternatively, and I think I would favor such a solution, we could reposition the spawn to somewhere less densely packed with creations, and simply create flatlands per request if players want a slab to build on.

I wonder if changing the map type to Flat would be enough for this, actually. If we changed it to flat, then teleported to a random location beyond the generated world, it should continue the generation with flat land. That would solve the issue quite nicely.