Staff:Admin permissions allow a user to access almost all content within an organisation. Staff:Admin users can view and manage all courses (including gradebooks) and events, see user profiles, and edit some system settings. Typically this permission is used for curriculum coordinators (i.e., someone who is responsible for managing all courses in a given year) and sometimes for assessment and evaluation coordinators, accreditation coordinators, etc.
In contrast to medtech:admin users, staff:admin users only have access to organizations in Elentra that they are permissioned to.
Also note that a user must have staff:admin permissions to be added as a curriculum coordinator of a course.