In Dread Lords, I remember there was a way you can destroy your own buildings if you decided you wanted to free up the space for a different building, cut down your maintenance costs a little, or to replace two basic factories with one improved factory.
I can't seem to find how to do that in Dark Avatar.
Am I still able to destroy buildings in Dark Avatar? If so, how do I do it? Do I need to research a technology first in order to do it?
Thanks.