R. David, I think you want <dtml-in "Catalog(mystuff=mystuff)"> <dtml-with "resolve_url(getpath(data_record_id_),REQUEST)"> <dtml-call "propertysheets.MyProperties.manage_changeProperties( blah=foo blahblah=bar )"> </dtml-with> </dtml-in> This will change the properties to whatever you want for the instances found in the above Catalog search (mystuff=mystuff). All my best, Jason Spisak 444@hiretechs.com