{
{    The purpose of this request is to copy a message.
{
{    NOTE:  If the 'from' message identifier is invalid, a system error
{          ('Buffer Manager Caller') will occur.
{
{       NLP$BM_COPY_MESSAGE (FROM_MESSAGE_ID, TO_MESSAGE_ID)
{
{ FROM_MESSAGE_ID: (input)  This parameter specifies the identifier of the
{       message to be copied.
{
{ TO_MESSAGE_ID: (output)  This parameter specifies the identifier of the
{       message resulting from the copy.
{
