Create Mountains?

[masterpain]

Is there a way to create mountains or thick roofs.  I know theres an option tool Rock 21x21 but doesnt really do much.

The reason I ask is because I wanted to mess around and make a base that drop pods can land through the roofs.

[ShadowTani]

The tool rock 21x21 option does work, but will only add granite. Under "Tools - Spawning" you can use "Tool: Try place direct thing..." to add individual rock tiles for any rock type. Is a bit slow if you want to make something big though.

I unfortunately don't know if there's any option to place overhead mountain roofs (thick roofs) however.