BuddyPress has three types of groups. Public, Private and Hidden. In all three cases users must be members of a group to participate in group forum conversations.
These two plugins modify a standard bbPress forum installation to allow BuddyPress group members to carry on discussions in bbPress.
BuddyPress public groups will be read only in bbPress. Anyone wishing to participate in a public group discussion must be a member of that group in bp.
BuddyPress private and hidden groups will be hidden in bbPress. Only members of these groups will see the forums and be able to participate.
BuddyPress group admins and mods have moderator privileges in bbPress. The moderator role is restricted to their group forum.
Free Download: Download this wp-plugin