Distribution list for empathy sessions

We have segmented client groups that consist of about 15 client representatives in each group. We have a process where we always review ideas with the members within that group.

When scheduling an empathy session, it won't be applicable for us to include the portal users that created or voted/commented on the idea. We would always want to invite the same members in a given client group, and it would be helpful to have a distribution group that we could quickly select.