Clicking on the key icon next to my bag icons doesn't do it. This was a question asked back in TBCc days with an answer given to just "click on it" but that doesn't seem to work. It just opens my bags, just like clicking on a bag icon does.

Ok, I just figured it out. I needed to click on the bag icon in top left of the bagnon window and click the ring icon in there, and not the ring icon on the default blizzard ui.