Login to SonicWALL.
In the left hand sidebar, click the disclosure triangle next to "Firewall"
Click "Services"
Where it says "View Style:" choose "Custom Services"
Click "Add Group..." (A new window will open)
In the "Name:" field type in the common name of the services group (e.g. Apple Remote Desktop, Windows File Services)
In the list of services box choose the services for that service group and click the "->" to move them to the other box.
Click "OK"To remove items from the other box click "Remove All" or "<-"