Would it be possible to have a way of stopping the IPTC Info from saving changes unless certain user-specified fields were populated? As a case in point, one agency has a specific requirement for a specific field to be populated and it causes all sorts of mayhem if an image is uploaded if that field is blank. I would like to be able to tell PM to stop me saving and pop up a warning is I try to save without adding text to that (or any other field I specify) field. Of course this would be turned off for all fields as a default and only turned on for specifically selected fields.