OU Campus has status indicators that help make clear why a page is not available for editing as well as who has checked out a page, scheduled an action, or if the page is in the process of a workflow. These icons are shown on many of the screens that display content lists, most notably the File Navigation sidebar, Pages list view, and the My Checked-Out Content gadget.
The checked out/in icon, represented by a light bulb, reflects the state of an OU Campus page or file. When a page or file is checked out no other users can make changes to the item until it has been checked back in. A page is automatically checked out to a user when they begin editing it.