Castle map for siege battles?

[Stazi]

Sorry, for double post but now I can answer my own question.
The right syntax that doesn't cause errors or make campaign disappear from the list is e.g.:

SetCastleMaps:: ID_WEST_FOLD "Helms_Deep" "Helms_Deep" "Helms_Deep "Helms_Deep" "Helms_Deep" "Helms_Deep" "Helms_Deep" "Helms_Deep" "Helms_Deep"

It's for the the 9 levels castle (like that from viking invasion). You just have to remove the numbers from the example and add "s" (SetCastelMaps command). This syntax doesn't cause the errors but unfortunately doesn't work too. It should overrides the default map group set by SetAttributes command.
I've found a tutorial by Barocca that says it's a viable option for setting different maps for the siege battles. Could anyone confirm this method works (or doesn't)?

btw making castle maps work is only part of my goal. I've found a SetBattleMaps command and now I'm trying to figure out the right syntax for it. This is even more important for me than castle maps. If someone knows something about it, PLEASE, LET ME KNOW! I really need a separate battle maps for provinces like Osgiliath, Pelennor Fields and many others.