[Zope] use of DTML in object property values?

I recall this question was posted a few months ago on the list but I don't recall a response ... Is it possible to include DTML in object property values (string or text entries)? Why would you want this? Imagine that the variable "sitevar1" is available via acquisition throughout the ZODB. If content updaters for the site know that sitevar1 is defined, they can avoid hard-coding this value when editing properties and instead use the snippet <dtml-var sitevar1>. Cheers, Darran.