Solomani,
First, Outlook 2011 is not realy supported on this forum and your questions about Macintosh programs should be sent to
http://www.microsoft.com/mac/outlook/
However, Outlook 2011 does not have this feature.
Secondly, to import a calendar into Outlook 2011, simply select Tools from the ribbon and Import. Choose "Import Outlook data File .PST or .OLM.
Hope this helps.