How to: Add A Shared Calendar Step-by-step guide Open  Outlook. Click on the  Calendar icon  in the bottom left hand side of the screen. 3. Click on the Add & Share icon located at the top of the screen. Select the  Add option from the drop-down menu then select  From Address Book... 5. The Address book will appear. Search for the Calendar name and select ten click  Calendar then OK. If you want to add multiple calendars continue adding them before clicking OK . 6. Once added you will find the shared calendars in the bottom left of Outlook.