[Zope] LDAPUserFolder question

[Erik Myllymaki]

I am using LDAPUserFolder-2.9 with Zope 2.10.6 on Ubuntu 7.

It is working well, users can log in and I can map groups to Zope roles.

However, I was hoping that I could assign groups local roles, so that I 
can allow groups to be 'Managers' only in certain sub-folders of our site.

Is this possible with LDAPUF, do I need additional packages, have i set 
it up incorrectly?

Thanks for any advice.