"Note on Saving an Engine" " " "You have been working with a COPY of " ". Any changes you have" "made to this engine since you Retrieved it have not been saved to the" "ENGINE LIBRARY copy of " ". If you want to update this engine" "with your latest changes, answer O to Overwrite it. If you want to" "create a New engine with these current specs, answer N. This will add" "a new engine to the ENGINE LIBRARY and leave the ENGINE LIBRARY copy of" " unchanged." " " " " " " " "