[Zope] Macro parameters has made into Zope 2.7.x ?

Hi, I've stumbled into the "Macro Parameters Proposal" as described in http://zope.org/Wikis/DevSite/Proposals/MacroParameters The discussion in the WIki page mentioned above dates 2003. Although I could not find any reference to it in ZopeBooks, I wonder if this feature (or similar) was incorporated into Zope 2.7.x ? best regards, Senra