Type Command
Category Generation 
Command /#natural
Help Use /help #natural

This command is useful for adding a good basis of Natural Floor and Negative Space blocks for your structure.

First, select an area about 2 blocks bigger than your structure. The command will - in very basic terms - place Natural Floor blocks below base blocks, and Negative Space blocks where it believes the structure doesn't extend to.

/#natural smart Edit

Calls floor and space at once.

/#natural space Edit

This command analyzes the selection, looking for air that is not supposed to be part of the structure and replacing it with negative space. This will make the structure integrate well with nearby constructs and terrain.

/#natural floor Edit

This command analyzes the selection looking to find the floor and adding natural floor blocks below it, to make it integrate into the terrain well.