So, I have a test world, and I just had the idea to add some different types of nodes for testing purposes. The only problem is, though, is how to get them. I used a custom superflat seed that makes the world made completely of half-slabs and without terrain generation, so I'm not sure if any natural nodes would have been created. Natural Nodes or not, I feel that it would be easier to spawn them in myself.
So, the question is, is it possible to spawn Nodes in creative mode? If not, is there some sort of external tool I could use to do this?