How do you use a saved route without it recalculating? For example, I have a saved route from A to B that travels along highways 1, 2 and 3. I want to pick up the route somewhere along highway 2 between those points. I don't want the route to recalculate while I am driving it. I'm a little surprised I've never needed to do this until now, but it appears that the Nav V doesn't support this. I also have the corresponding track including shaping points, but you can't get TBT directions from a track.