I do mostly mountain biking, and I just have one data screen setup, which I want displayed most of the time. except when there's a fork on the trail. I think right now it displays the map when it sees a turn on the trail - for mountain biking trails have a lot of turns on them sometimes. Can the 830 be setup so it only shows map prompts on forks? If so, can it be set to show the prompt, say 50 feet (user selectable) from the fork?