Outlook

- Open Outlook.
- Click on the group you would like to edit.
- Click Group Settings > Edit Group.
- Here you can edit Group Name, Privacy, Language, Add/Remove members, and Edit Permissions.
Click OK, when finished.

Outlook Web App (OWA)

- Sign into Commons.
- Click the Mail icon, at the top of the page.
- Click the Group you would like to edit.
- Click Private Group.
- About: Edit Description, Privacy, and Language.
Members: Add and Remove, or edit Roles.

Related Articles:

Office 365 - Create Group