n Outlook 2016, there is this huge gray bar at the bottom which lists (in a very big font) Mail, Calendar, People, Tasks, etc… to switch to their corresponding folder.The amount of icons that you see depends on what you have configured for the “Maximum number of visible items” in the Navigation Options, but also on the width of the Folder Pane itself. Get 24/7 Outlook Support Technician to help you with placing icons in Outlook navigation options