Click 
or pull down the Add Entries menu and select Add Group ... to create a group entry in the active ACL. Click or pull down the Add Entries menu and select Add Group ... to create a group entry in the active ACL.
When you invoke this option, the Add Group dialog box is displayed. The home cell name is entered in the Cell field; change this if it is not desired. Enter the group name in the Group Name field.
To obtain a list of all the cells that have trust relationships with the home cell, click on the Browse Cells ... button. To obtain a list of all the groups in the active ACL, click on the Browse Groups ... button.
Select the permissions you want for this group by clicking the desired permissions displayed in the Permissions box. Note that if you do not select any permissions, no permissions are granted and no access is allowed.
For more information, see Adding a Group.