All the secondary group "titles" such as "Forum Supporter" and "Radio Club Member" and "Prayer Warrior," can now be displayed simultaneously by users. For example:
John Q. Public 
Senior Member
Prayer Warrior
Radio Club Member
Forum Supporter
This is a
new feature as the software didn't support this capability originally.
How it currently works:
Step 1 - Join a group
For example, to Join Prayer Warriors:
Profile > Control Panel
In the left side column, click
Group Memberships
Then select
Prayer Warrior > Join Group
After your join request has been approved, you can add a Prayer Warrior group title to your profile.
Step 2 - Add Group title
Again using the Prayer Warrior group as an example:
Go to Profile > Group Memberships again and find the box labeled:
"You may choose to be identified as a member of the following groups"
Find the "Prayer Warrior" line and tick the circle to the right of that box labeled "Identify me as a member of this group."
Click on "Update Display Group"
And voilą, you'll have the new title in your profile and posts.