Distribution Group To All Clients

Hi, I want to add to my all clients 2 Distribution Groups, it's for that they will be in contacts list. 

There is any vbs script for that or ,something else.

I looked for the topic :  http://www.expta.com/2011/01/introducing-lyncaddcontacts.html

And i realize that the lyncaddcontacts tool cant help me with my problem.

Regards,

Lior