I wouldn't have added it, but I felt Deek didn't know how to do it because of his advice to create new Volumes just so the pivot fits. I didn't mean to be condescending.
Thanks for caring, Murphy! That said, I simply suggested creating a new volume to start fresh, to wipe clean any other issues that might be causing the spawn issue with the added benefit of resetting the pivot. No way of knowing what other variables he might have futzed with. Resetting the pivot manually is sound advice if your spawn volume is something other than the default cube brush, requiring additional scaling, etc. and you're certain there's no other underlying problem caused by some random variable.
I try my best to help where I can, but I'm still quite noobish. It is not my intention to give bad advice! If Murphy or one of the other gurus second guesses me, you can bet he's probably on the right side of the discussion. Glad to hear you've got it sorted, Pectabyte.
As for the doors, be sure you set your Key positions (0, 1 and 2) under the Mover section of the right-click menu. If you're not sure what I mean, refer to one of the retail maps and examine a working door. And be certain you've linked the trigger to the door properly with a common tag under Events (Tag "door1" for the door, and Event "door1" for the trigger).