I have had the 737 NGX for about three weeks now and feel I have read, read and reread the included information but can not find how to create a “CO ROUTE”. I have searched the Internet and find several others who have this problem but have not read an answer. I have looked through this forum for the answer as to not request something that has already been answered. But if someone could help me out with this I would appreciate it. I have saved to FSX but that did not show as a “CO ROUTE” in the FMC. Love the PMDG.