[Zope] Determining permissions in a Product

Hi, Is there a clever way of determining/debugging the required permissions and/or roles for a given Product? I know that it's pretty straightforward if the product is released as a capital-P Product, but I am less sure about looking through a .exp file. I am trying to get FlexFAQ2 set up with the minimum set of permissions. If I understand the docs correctly, I have enabled the right flags but still I get prompted for a username/password when I try to add an item. Obviously, I would like to solve this problem I would be very interested to hear about more general approaches to problem solving products. Thanks,