PeepSo bbPress addon enables you to attach groups into the forum. To enable the setting to navigate to
PeepSo Configuration >> PeepSo bbPress Addon > Group Forum Settings Panel
with this feature, When users join a group, they get automatically assigned to a relevant forum. Those forums can be private too, meaning those forums will be available to the people who actually joined the group. This feature requires PeepSo Groups Plugin to be enabled.
To assign a group into the forum, Simply Navigate to
Forums >> Add New Forum >> PeepSo Groups Panel and assign a group
when a user joins this group, He will automatically join the respective forum and can view that forum tab in the group.
Frontend View
In the image below, you can observe that a forum tab is visible within the group.