Add a Calendar in Outlook
Click the Calendar button:
Click "Add Calendar"
Click "Add from directory", you can click either one:
Click the drop down menu and select your user name:
Search for the calendar, type the office name in or the group name depending on what you need to add:
Close the inner window and look for your calendar on the main Outlook calendar interface:
You can choose the Split View and toggle it on or off by clicking it again: