[Zope] manage_editProperties Question

I have looked through the Zope book and other documentation, but still am unable to properly allow others to change properties in a product with a custom built form. Case in point, a product with a Property called contact which is a string The product changing method I am trying to make work contains the following def editProductInfo(self, newcontact): ... self.manage_editProperties(REQUEST=None,contact=newcontact) ... Which is not correct obiously since it generates the following error: Error Type: TypeError Error Value: unexpected keyword argument: contact -------------- TIA for helping someone so slow as myself... Ron Roeber University of Nebraska