Adding Contacts to a Community Survey Group

Hi,

I am wanting to set up about 30 different Community Survey Groups for a given portal to send separate surveys to each Group. When I am asked to add Users to a Community Survey Group I am required to enter each user and email address separately. Is there a way to select users who are already registered on this portal for the existing user list? We are also using JomSocial and ideally I would like to match the Community Survey Groups to the JomSocial Groups of users.

Kind regards,

Melinda Browning