[Zope] manage_change_history

hi, i heard about "manage_change_history" is there someone who can tell me how i could create a list of all history versions of a dtml document ? like dtml-in manage_change_history version number user date content of DTML Document /dtml-in I already use <dtml-if manage_change_history> <dtml-in manage_change_history mapping> <dtml-if sequence-start> <dtml-var user_name> </dtml-if> </dtml-in> </dtml-if> but this gives me only "one" user_name back :-(