To enter another's version, use the following URL strategy. http://www.yoursite.com/path/to/object/version_name/enter This will set a cookie. While viewing the site, you will view the changes made in that version. When you are done, use the following URL to remove the cookie http://www.yoursite.com/path/to/object/version_name/leave For more info on Zope Versions, see the Zope Content Manger's Guide. http://www.zope.org/Documentation/Guides/ZCMG/ZCMG-HTML/ZCMG.html