In some situations, you may wish to locate all User records within your BBIS environment that have the checkbox marked for "This user has Supervisor rights and can manage Users and Roles.", which makes that record a Supervisor within your environment.
Login to BBIS as a Supervisor User
Go to Users & security > Users
Mark the Supervisor checkbox next to the filter button, then click Filter (Make sure the Filter by role is set to Everyone
Click the Filter button
Note: If you have deleted any Supervisor record, you can view these by also marking the Deleted checkbox as well the Supervisor checkbox, then click Filter. This will show all deleted Supervisor User records.