I've added a new field to InventTable and added the field to Released products form. The requirement is then that some roles (perhaps just everyone with access to the form) are allowed to read the field and some role(s) are allowed to edit. There does not seem to be a simple way to do this. I can add a new privilege that sets update permission to Deny but I can't just give that privilege to everyone as it will not be overridden by a privilege that allows update. Is there a way to do this?