Hi, Till now I did everything with dtml, external python scripts, python scripts and zclasses. Gradualy I want to switch over to pagetemplates and external python products. The first thing I want to do is converting the dtml to pagetemplates in the actual sites. These sites are based on a lot of Zclasses. For instance: <dtml-with batest> <dtml-var index_html> </dtml-with> Where batest is an instance of a basic element of our content management system. After reading zpt docs (Zopebook and docs on devshed), searching in the mailing list archives I came to the following equivalent: <tr><td tal:define="batest here/batest" tal:content="batest/index_html"></td></tr> This only works in the way that it can find the index_html method (dtml) in the Zclass batest is an instance of. It won't render (it won't find) the other dtml-methods or any other object in the Zclass wich the index_html calls. So how do I do a 'dtml-with' in tal? Henny