Add Skype Contact in Lync for Mac 2011

Hi!

After established the federation between our Lync Environment and Skype we have an issue with Lync for Mac User.

Is there any possibility to add a Skype-Contact in the Lync for Mac-Client?

With the S4B-Client on Windows you have to add it separately with "Add a contact Not in my organisation" and choose "Skype" but these point is in Lync for Mac 2011 (Version 14.2.1) not available.

Thanks for you support.

Norbert