Python Docs- object addProperty isnt documented well ob.addProperty('valName', True, 'BOOL') The last optional value that sets the type isnt in the docs. - Cam -- Campbell J Barton 133 Hope Street Geelong West, Victoria 3218 Australia URL: http://www.metavr.com e-mail: cbarton at metavr.com phone: AU (03) 5229 0241