If you have the @baseclass.ToolbarFull privilege, you can view the XML document that comprises the form that displays a rule instance by selecting Actions > View XML.
You can view the XML document to assist in debugging so that you can identify the property names and the handle for each property that is referenced in the form.
Note: If you have modified and saved the rule or data form, this information might be out of date. To see updated information, close the form, open the same rule or data type again, and select Actions > View XML again.