Indeed they can, and it's quite standard to do just that.
Head to Admin > Menu Administration, and then find the appropriate Menu category (like you said "Resources" is a good idea), and click "Add New Item to this Menu."
There you can create all that just as you requested.
I see a place where it can be added. Thanks, Chops! My challenge is that I can't do much beyond basic HTML...I'd love to implement something a bit more robust. Nonetheless, I will at least post the documents here!
Best,
-Nik