Problem: ------- You want your ZClass instance edit form to correctly display the currently selected values for a multiple selection property. Assumptions: ----------- You have a ZClass that has a multiple select property named 'format' with a value set to 'format_list'. You have a 'format_list' lines property set where the ZClass *instances* can acquire it. You generated an 'Edit' type 'Property Sheet Interface' that contains the following code: <tr><th align=left valign=top>format</th> <td align=left valign=top></td> </tr> Solution: -------- Replace the above code with the following: <tr><th align=left valign=top>format</th> <td align=left valign=top> <select name="format:list" multiple size="4"> <dtml-in format_list> <option <dtml-if "_['sequence-item'] in _['format']"> SELECTED</dtml-if> > <dtml-var sequence-item></option> </dtml-in> </select> </td> </tr> This will correctly display the currently selected values for your ZClass instance in the edit form, and capture the changed values when the form is submitted, casting even single selections to a list. Note: If the 'format_list' lines property is set where the Zclass instances can acquire it, but not where the ZClass definition can acquire it, then the Property Sheet management screen will *not* display the values. If you want to provide a default set of values that the ZClass definition can acquire as well as the ZClass instances (of course you can also override this locally), set the format_list property on the root folder. HTH, Michael Bernstein.