I have shared my contacts folder with a user who has Office 365 for MAC (I use traditional Office 365 Pro for Windows).  They are entering and maintaining my contacts for me.  My contact folder defaults to "File As Last Name, First Name".  However there does not appear to be a File As setting on Office 365 for MAC and every time they enter a new contact or edit an existing contact, my File As setting for each contact added/changed switches to First Name, Last Name.  This ends up listing the edited records by their first name (ie. John Smith moves from the S's to the J's). 

Is there any way to set the Office 365 for MAC to File As Last Name, First Name for the contacts?