It's a great design for a nano, unfortunately they do not come standard with the co2 advanced system.
Which reminds me, I promised you a few photos of the Maintenance Stand I in another thread:
While normally I would agree with you that the boxes should incur a "wtf," response in correlation to what's sitting on them, but in this particular case they are filled with Aqua Journals and what not, so it's rather appropriate. Or something.
P.S. if you've found these techniques valuable, help share the information with new comers by linking back here in your own journals when you use my techniques!