I'd usually agree with you about dreamscaping, but I know for a fact that my sister can do it some times by accident.
Also, if you eat chocolate does it help you lucid dream? I heard it helps your body produce more serotonin which makes more melotonin, and both of those are supposed to help lucid dreaming.
I don't eat chocolate. I know of some herbs that would help, but I won't say which ones. Not that I'm am being arrogant or selfish, I don't think it is approprate.