How to enable S/MIME in OWA MS Exchange 2013?

Hello,

I can't find in ECP for MS Exchange 2013 function to enable S/MIME for OWA. Can somebody help me? I found only registry update for MS Exchange 2010 SP1 or download S/MIME function for IE7+ for MS Exchange 2010, but I am not sure if I can use it for 2013.

Thank you,

Pavel Hula