Groups can be added to other groups so that you easier can manage access to documents, workflows, and checklists.
In the example below, the different disciplines are selected and added to the group @BIM.
If the group @BIM gets access to documents, the other groups will automatically inherit the same access.
The same goes for the access settings in a workflow. In this case, all the groups that got added to the @BIM group will have access to the workflow.