Users of Grouper sometimes need to create and manage entities in Grouper which are not part of a central subject source. An example is an application might manage access to a database where schemas are connecting which are application schemas. The access management application will need to represent these schemas in Grouper so they can be assigned to Groups/Roles/Permissions. Before 2.1 this could be solved by creating a Group to represent the entity, and not assign members to the group. In 2.1 an "entity" can be created in the folder structure.
The "Group" object in Grouper is close to what we need for entities, they are in the namespace, they have some privileges (only ADMIN and VIEW are needed), and they have UI/WS support. The implementation of this enhancement is to have a typeOfGroup option as entity. Currently for v2.1 the options are "group", "role", and "entity".