In Outlook you can add an additional calendars for work or your own personal use that is a separate calendar. To utilize this tool, follow these steps:
-In Calendar, click on the folder tab
-Click on New Calendar
-You will then see an option to type in the name of your new calendar
-You should then be able to access the new calendar on the Calendar navigation pane.
-By selecting the check boxes on the left navigation plane, you should be able to view the calendars at the same time.
Neat tip :o)