[Zope] plone_3rdParty

I already searched the list and plone.org about plone_3rdParty but cannot find information about how to integrate the ratings_box into my plone site. The normal path via properties is clear and works for the standard boxes, but not for this ratings_box from Plone_3rdParty. What is different here? And how can one access the other products found in Plone_3rdParty? TIA Stephan