[Zope] How to search doc about acl permissions Zope?

[José Carlos Senciales]

Hi,

I´m trying to develop a product to control my own folders, users , roles and 
then i need to known how to interact with acl permissions of zope.

I´ve looked the Zope API and i think have to use BasicUserFolder and 
UserFolder but i don´t found a document to explain this.

The zope book and the developer guide don´t speak about.

thanks