How to make an empty map?

[Zombie-Buffet]

In the World Editor, I'd like to create an empty world. Devoid of ALL things except for perfectly flat terrain and the green and brown texture on the terrain.

I've been partly successful with NitroGen, in that I'm left with trees, loot, grass, rocks etc.

If I type "trees" in the console, that gets rid of the trees. If I uncheck "show decor" in Level Tools, that will remove grass and plants, but occasionally there are invisible plants still there that get in the way of object placement.

I'm also unable to save this map.

The save button glows when I hover over it, but nothing really happens when I click on it.

This is the best I can come up with.

 

[Damocles]

You would have to edit the biomes.xml, and lower the probability of trees and other objects spawning. Lots of work, unless you can automize it.

Then the game will always spawn empty maps with this config.