[Zope] Can't use DTML in How-To?

I'm trying to write a new How-To (see http://www.zope.org/Members/lstaffor/zProperties ) that includes HTML examples. So I wanted to use something like: <pre> <dtml-var ConstructorFormOld html_quote> </pre> ...to process the examples for me. But it seems an HTML How-To is not scanned for DTML. Is that true? Is there another (easy) way to do it? -- Thanks -- Loren