While many site administrators may prefer to manage group roles and permissions at the group type level, it is possible to configure roles and permissions for specific groups. This is achieved by adding another field to the group type.

From the Organic Group configuration page, click on OG field settings.

This next page requires some careful study. The goal is to add a field to the group type that will allow the control of roles and permissions at the group level. First, select the group type from the select list labelled Bundles. Next select the Group roles and permissions option in the Fields list. Third, click the Add field button. Lastly, the new field will appear in the table of groups-related fields associated with the group type.

To confirm this field has been added, navigate to the Manage Fields tab on the content type (e.g. /admin/structure/types/manage/group/fields) There you will see the new field with the machine name of og_roles_permissions.

Next, go to a group page and click on the Edit tab. You will see the new field in the edit group form. Select Override default roles and permssions and save the group.

Notice the group page now indicates this new setting.

Now go to the Group tab. Notice how the Permissions and Roles are no longer labelled as read-only.

If you click on the Permissions link you can configure the permissions for the specific group.

If you click on the Roles link you can configure the roles for the specific group.