https://forums.garmin.com/showthread.php?t=21640 "Shaping Point - In Mapsource, to "shape" a route to go exactly where you want there are a couple of methods. Just as with the personal navigation device, you can edit the route's properties to insert Via points (these are not shaping points although they do serve a similar purpose). You can also just use the route tool to click on spots on the map to force the shape of a route. When you do that, you are using a location that is not already in one of the searchable location databases. Mapsource does not force you to add these points to any of the formal databases. It simply inserts the actual coordinates invisibly into the route. These are shaping points. Shaping points occur in another, automatic, fashion as well. Even when you only designate a two-point route, e.g. go from Point A to Point B, there will usually be multiple places, usually intersections, where a change in direction is required. When building the route, the personal navigation device (or Mapsource/Basecamp) will automatically include all of these points in the route. To easily illustrate this, you can create a two-point route in Mapsource by clicking on a Point A and a Point B that will require a few turns to get from one to the other. Now export the route to a GPX file and take a look at it with Notepad or your favorite text editor. You will see that, in addition to the starting point and the ending point, there will be a bunch of other points <rtept> in the file to control all the turns."