The list on the left is the current zone minilist, which displays everything you need to collect from your current location. Sometimes Blizzard doesn’t autorefresh your collection, which causes issues with tracking. It’s also a good idea to do this fairly regularly, especially if you’re having issues with items showing as uncollected when you know you have them. We suggest that you SHIFT+CLICK the “ALL THE THINGS” header to force a refresh of your collection when you first install. These can be freely moved around the screen, resized, and closed. There are two central lists displayed by ATT.