I need to give a usergroup permissions to close threads

[superb]

Hi,

I know that in vB3 is possible to give a usergroup (that is not moderator) permission to close threads and on doing so adding a [CLOSED] prefix to the thread. This can be done on thread tools.

However...

In vB4 I've given the usergroup and created the prefix and it doesn't seem to work. The users can't close their threads on those specific forums. All the forum permissions are set for the usergroup to be able to close the threads they create but it simply doesn't work.

Does anyone know of a hack or something that would enable one or more usergroups to close their own threads on specific forums (not forum wide obviously)? Or is there any way of doing this in the admin CP I'm missing?

Thanks in advance for your help.

Regards

Ross