{
{    The purpose of this procedure is to obtain the first operator action
{  menu in the list of menus the caller is validated to display. The set
{  of validations active for the caller is determined, and then a call is
{  made to the ring 1 procedure which searches the menu list for the
{  appropriate menu.
{
{       OFP$GET_FIRST_OPERATOR_MENU (MENU_DESCRIPTOR, STATUS)
{
{ MENU_DESCRIPTOR: (output) This parameter specifies the descriptor of the
{       first menu in the list of menus which the caller is validated to
{       display.
{
{ STATUS: (output) This parameter specifies the status of the request.
{
{       CONDITION: ofe$no_menus_available
{
