Create a Custom ADM Template

Below is an example of Group Policy ADM template I created, from this you can customise with the registry keys you need to modify

;******************************************************************************
;File:         custom.adm
;Created:      23/05/2007
;Author:       Colin Barlow
;Description:  Custom settings ADM template
;******************************************************************************
;VERSION CONTROL
;
;Version    Date        Modifier    Description
;
;1.0        23/05/07    Colin Barlow    Version 1.0 Released
;******************************************************************************

CLASS MACHINE

CATEGORY "SNMP Service Settings"
CATEGORY "Security"
KEYNAME "SYSTEM\CurrentControlSet\Services\SNMP\Parameters\PermittedManagers"
POLICY "SNMP Service PermittedManagers - Server 1"
EXPLAIN "Add servers to the list of these to accept SNMP Packets from.  If not required set to Disabled"
PART "Server 1"    EDITTEXT DEFAULT "server1.domain.com"
VALUENAME "1"
END PART
END POLICY

POLICY "SNMP Service PermittedManagers - Server 2"
EXPLAIN "Add servers to the list of these to accept SNMP Packets from.  If not required set to Disabled"
PART "Server 2"    EDITTEXT DEFAULT "server2.domain.com"
VALUENAME "2"
END PART
END POLICY

POLICY "SNMP Service PermittedManagers - Server 3"
EXPLAIN "Add servers to the list of these to accept SNMP Packets from.  If not required set to Disabled"
PART "Server 3"    EDITTEXT DEFAULT "127.0.0.1"
VALUENAME "3"
END PART
END POLICY

POLICY "SNMP Service PermittedManagers - Server 4"
EXPLAIN "Add servers to the list of these to accept SNMP Packets from.  If not required set to Disabled"
PART "Server 4"    EDITTEXT
VALUENAME "4"
END PART
END POLICY
END CATEGORY