"All Inboxes" disappeared

Does anyone still have this issue? I inadvertently dragged mine off the sidebar and couldn't figure out how to get it back. The solution I discovered was to go to the "favorites" tab and make sure it's open by clicking on ">" and if you don't see it there, which you probably won't, click the add button (+) and it comes up as a choice at the top of the list. Click to add it and you're back in "All Inboxes" business.