I have been wanting to create some caves in the flavor of the Minoc caves. That is, a mountain, with a mouth opening that someone walks through and is then in a cave for mining, killing, whatever. I loaded up CentrED today, and tried working it out... So far, have not been very successful. Every time I try to place a cave floor at say a 0 Z value, the editor things I want to collapse the mountain to 0 level. So, it creates this monster valley. I can't seem to get it to put a second layer in at z=0. Any ideas how to do this? Theoretically, you should be able to create many layers on top of each other.