I was trying to figure out how to use the types 'selection' and 'multiple selection' and found the following: In <zope dir>/lib/python/ZClasses/Property.py, the following code shows that these type should result in an HTML Select box, if t=='selection': return (''' <!--#if "_.has_key('%(id)s')"--> <select name="%(id)s"> <!--#in "_.string.split('%(select_variable)s')"--> <option <!--#if "_['sequence-item']=='%(id)s'"--> SELECTED<!--#/if--> ><!--#var sequence-item--></option> <!--#/in--> </select> <!--#else--> No value for %(id)s <!--#/if-->''' % p ) return '' ...but I couldn't figure out how to get any data in it. Then I found in <zope dir>/lib/python/OFS/PropertySheets.py: if type in ('selection', 'multiple selection'): if not value: raise 'Bad Request', ( 'The value given for a new selection property ' 'must be a variable name<p>') prop['select_variable']=value if type=='selection': value=None else: value=[] setattr(self, id, value) This told me that I should be putting a variable name for the value, and that worked fine. The problem them comes with 'multiple select' boxes. Nothing displays, and I think that is due to there being no analog for the first code snippet above. Can someone with more Zope Zen than I confirm this? I think it's a bug, and if so I'll put it in the Collector. btw, this is released Zope 2.0.0 on linux, source release. Thanks! Brian