Changing the name of the default Calendar in Outlook?

Peter_Drabble  Thanks for your work on this issue. Unfortunately, this doesn't look like it will do the job, as it seems to set the default account (making that account's primary calendar the default calendar), rather than allowing you to set the default calendar from among multiple calendars within the default account. 

Zalop I may give MFCMAPI a try, but it doesn't appear to be available for Macs. I would have to find a PC on which to set up Outlook and then run  MFCMAPI.

Really, Microsoft just needs to allow us to rename the default calendar within Outlook, just like other calendars can be renamed! (I'll look for that Feedback button...)