For a long time on CodePen, Collections essentially meant “A Collection of Pens”, even though there is more on CodePen than just Pens. There are Projects too, which we’ve given a good amount of love to recently. Now you can add Projects to Collections just as naturally as you can a Pen.
Notice there is a Collection in that Collection too. 
. Hey why not right? It’s kind of like nested folders and might unlock some organizational possibilities for you.
Note that privacy works the same way across the board. If you put a private thing in a public Collection, only you will see the private stuff (you’ll see a message about it). If the Collection is private, it reveals the private things inside of it to whoever can see the private Collection.
This has been a satisfying thing to roll out and watch because we’ve seen y’all just using it naturally with no prompting (or confusion, or bugs, as best we can tell!)
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