This is huge..
Also combined with the door tool that you've released the possibilities are amazing.. I've completely changed the look of the end of crystallos with it.. the ability to share something like this to everyone would be great.
http://i.gyazo.com/2ebe0f8757e80720588a3c12ba2fa896.png
Doing all that and then having someone add on to it would make for some pretty badass places.