System admins can give themselves admin access to any group within their Workplace community, mark a group as official, automate group membership and delete groups entirely.
Delete a group on Workplace
Make yourself an admin of a Workplace group
How can I automate group membership on Workplace?
Create a default group on Workplace
See all Workplace groups in your organization
Create a Workplace group from an email distribution list
Mark or unmark a Workplace group as official
When I link one Workplace group to another, does the link show up under the Recommended by the Admins section of both groups?