You use security groups to specify tasks that users can perform.
To add or edit a security group:
Tip: To select all security authorizations, select the Select to grant security access check box.
To remove all security authorizations, clear the check box.
To delete a security group:
The next time you open the Security Groups screen, the deleted security group does not appear on the list.
Assign each user to a security group (or groups). For more information, see Assigning Users to Security Groups.