CMS permissions

[marcopolo]

I've recently removed permissions for registered users for the CMS but I cannot seem to only permit visibility for sections and articles.

E.g. If I permit 'read only' at the top level section for a certain group, although it suggests only that section, I can see everything section and article below it.

I take it and from the lack of response on vbulletin.com that this is not achievable.

Am I missing something of is there a better permission plug-in?

Thanks