Scratch that last statement. Needs:

Original designs
Advancified
Monoportal
No Elements
XxYxZ (3x3x3 and 1 Wide Puzzle)
Simple (5-minute brain teasers)
FrankenScience
Friends-only
Portal 2 Beta
Coop
Skillmaps (Fiendish, Fractious, Breakneck)
Other (Laserdox, Airstraife Puzzle, Conservation, Conservation 2, Bhops x3, Peramulation in Hammer, Best of Gig, and Crawler Redux? )

Hey Gig! Create a collection for your monoportal, no elements, and your original designs since you have only one collection for your "Advancified" chambers! I want to subscribe to them in one click for each collection. I'm not too big on monoportal and no elements maps.

A superb collection of logical puzzles. Thank you!
Your use of the word "fiendish" might be a bit misleading to anyone who has played a particular other map of yours. ;)