Each time you click on the position icon, you can
Long press over the map to add a Waypoint. You can delete or modify or drag the waypoint. If you are recording a trail, all the waypoints will be saved with your trail.
Click on 'Start tracking'. Your mobile starts recording your trail. You can save any time and give a name and stop your trip any time. If you are out of battery, the aplication will resume your trail when you restart your mobile.
Each trail has a green starting waypoint. By clicking on the waypoint, you can display the altitudes of the trail.
Click on 'French GRs
You get the list of all the trails and you can search by trail ID, or city. Each character that you type will automatically refresh the list. Click on a trail to load.
You can go to a city or a street.
Most of the points of interest have a phone number and a web site.
You can change the unit in miles, kms or nautical miles.