Symantec Endpoint Protection Manager for MAC environment

Hi All,

Looking for some advice if possible,  

I have a few MAC SEP clients rolled out from the SEP 12.1.1 install.  I can't see them on the SEPM and wondered how do I go about adding them into the manager?  Our computers are populated from Active Directory and the machines are in AD.  When I sync the manager with AD it still doesn't show the clients.

Any ideas? and advice on how to update the MAC virus definitions once they are added to the SEPM.

Thank you.