Add a New Profile:
From Finder, open the Applications folder
Ctrl+click or right-click Microsoft Outlook, and then click Show Package Contents
Open Contents > SharedSupport, and then double-click Outlook Profile Manager
Click the Create a new profile button 
Name the new profile
Select the profile that you want to remove
Click the Delete the selected profile button 
Set a Default Profile:
From Finder, open the Applications folder
Ctrl+click or right-click Microsoft Outlook, and then click Show Package Contents
Open Contents > SharedSupport, and then double-click Outlook Profile Manager
Select the profile that you want as default
click Set the default profile 
click Set as Default
Restart Outlook for this change to take effect
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