I wonder if he means lengthen it significantly? I get it. If I want to track how long a trip to the store is in km, but when I get there, shop and come out the display has timed out and I've lost my TRIP-2 value. Obviously I can try and remember to write it down but that's harder.
Net result though RGOLD, but I think you're out of luck. No option to disable or change the timeout value that I've heard of.