!!! Overview
[{$pagename}] is defined in [RFC 3671] as an [Attribute Usage Flag] that indicates that the [AttributeType] is a [Collective Attribute]

[AttributeTypes] with a [{$pagename}] provide a way of defining values that will be assigned to attributes based on the entry's membership in a [LDAP Subentry].

Many [LDAP Server Implementations] do not currently provide support for [Collective Attribute]s. 

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]