Change Users & Groups Group preferences on Mac

If you’re an administrator of your Mac, you can use the Groups pane of Users & Groups System Preferences to view or change a group’s membership, or change its name.

To change these preferences, choose Apple menu > System Preferences, click Users & Groups, then select a group on the left.

Open Users & Groups preferences for me

Option				Description
Name				Change the group’s name.
Membership				Select the users and other groups you want to make members of the group.
Add and Remove				To add a new user or group, click the Add button on the left, then enter the information for the new user or group. To delete a user or group, select it in the list, then click the Remove button on the left. See Delete a user or group.
Lock				Locks or unlocks Users & Groups preferences. Click the lock icon to unlock it, then enter an administrator name and password.

You can control a group’s access to your shared folders by setting access permissions in the File Sharing section of Sharing preferences. See Set up file sharing.

You can also set group access permissions for folders and files inside your shared folders or elsewhere on your Mac. These access permissions also apply to users who log in to your Mac directly instead of connecting to your Mac for file sharing. See Change permissions for files, folders, or disks.

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macOS User Guide

Change Users & Groups Group preferences on Mac