I've had my TomTom One for a couple years, and I really like it. But how do I program it to do a specific route instead of picking one that it gives to me? Like if I know how to get to someplace and I want to program the TT to take me just a little different way of what is the quickest. When I choose "plan a route" that's exactly what I want to do. I want to program the route, but my TT just gives me the quickest or shortest or whatever. What am I doing wrong?