Reference Number or Drop Ship to

	If this is a valid Customer number or O/E invoice number, that
	address will print as the Ship to address on the P/O.

	If an Invoice number, an option is given to put this P/O number 
	on the Invoice master screen as the Drop Ship P/O. The Drop Ship
	check box will be checked also on that screen.

	If there are no line items entered on this P/O, and this is an
	O/E invoice number, an option to copy the line items from the 
	invoice into this P/O is offered.

	The above options are enable by listing O/E, or entering something
	in the Drop Shipto field, or by clicking the <-Status button.