(feature request.) collections

[lowvaluewoman]

I’m unsure how hard this would be to implement, but I think zen should take a page out of edge, sidekick, and particularly deta surf's books and turn the bookmarking system into a more dynamic collection system.

some features:

• having different collections for each container.
• being able to save bookmarks, files, PDFs, products, and screenshots into a collection (among other things, if anyone else has suggestions).
• having a more visual, pinboard-esque design than bookmarks.
• grouping everything into folders