Adding user accounts to an internal group

You can add only accounts of internal users to an internal group.

To add user accounts to an internal group:

In the main menu, go to Users & roles → Users & groups, and then select the Users tab.
Select check boxes next to user accounts that you want to add to a group.
Click the Assign group button.
In the Assign group window that opens, select the group to which you want to add user accounts.
Click the Assign button.

The user accounts are added to the group. You can also add internal users to a group by using the group settings.