custuom adm files does not work

I have tried to create a custom ADM with belowed data. When I ad the adm file can i se the Category in the GP Editor but when I click on the Category I can't see anything on the right side. Should there be a policy called AutoAdmnLogon?

Thanks.
Morten

CLASS MACHINE
CATEGORY AutoAdminLogon
POLICY AutoAdminLogon
KEYNAME "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon"
VALUENAME "AutoAdminLogon"
VALUEON NUMERIC 1
VALUEOFF NUMERIC 0
END POLICY
END CATEGORY;