I have mine set to leave a 'trail' of where I've driven. Is there a way to save and name this route after I've driven it? I want to use this following a specific atv trail route on public lands. It would be differfent that putting in a route with beginning and ending points because I don't know where it will end. Would I have to save location at beginning, waypoints throughout the trip then save ending location? If I could save the current route I just took it would be a lot easier but I can't make that work.