Restriction: You need to be signed in using an administrator's account in order to make these adjustments.
User Menu > Settings > Users & Groups > Groups
How to delete Groups
The Group List page will be displayed, showing the different groups and the users who are assigned to them.
- Find the group that you would like to delete.
- Click on the Trash-icon to delete the group
- A dialog will pop-up. Confirm your action to finish things up.