LORROS Groups are able to invite guests/experts to take part in Discussions at any time. Any member with Admin Access can invite guests.
When you complete a guest invitation form, that guest is sent an email which includes instructions for signing in and a temporary password. The guest then receives all emails relating to Discussion and is able to post Comments and Replies.
Once the Discussion ends, the guest(s) can no longer access the discussion (or group) unless by another invitation.