When you start the routeCourse app on your GPS it will show you a list of your local routes (the ones already downloaded to your GPS) and your "cloud" routes (routes created (or imported) and stored in the cloud at dynamicWatch):
The GPS icon (rectangle) by the route shows it has already been downloaded, while the cloud icon shows it is available to be downloaded from your account on dynamic.watch.
Tap or select one of these, and you will be given the option of downloading it, or of both downloading and launching it immediately.
Tap (touchscreen) or use the Up/Down and Select buttons (Edge 520) to select a route to "launch" it in the GPS's built-in activity/map feature. This is the usual map and activity recorder capability of the GPS that you are already familiar with.
Routes are sorted by their distance away from you.
Turn by Turn Directions
If you have our Premium option, routes from Ride with GPS can have course points that are included in the routeCourse download, as are course points contained in TCX files from other sources such as Plotaroute and Gpsies. A route may have up to 200 course points on an Edge.
If a route downloaded by routeCourse does not include "cue sheet" directions (also know as course points) your device may be able to generate them using the built-in maps.
On an Edge 820/1000 (or an Edge 520 with maps installed), you should be able to enable "Turn Guidance" and "Off Course Warnings" in Course Settings.