LDAPUserFolder mapping roles

[Marcel Hartmann]

I'm using LDAPUserFolder for Zope 2.7.6 and it works fine.

Is it possible to do the mapping to zope roles by the _value_ of the 
group and not the group name?
We defined in LDAP many groups to define access to different 
applications - one is named "zope". I want to map the values of this 
group "zope" (e.g. "admin_intranet", "admin_extranet", ...) to zope 
roles. How can I do this?