I have been using Garmin GPS devices for decades, but when I bought my Garmin fenix 5x I was overwhelmed by its complexity. The fenix does dozens of things but there are only 5 buttons to make it operate. As I do in such situations, I tried to find a book that would describe all of the fenix capabilities and how to make them work. I couldn't find any - except for one in German. So I decided to research and experiment with the fenix 5x and write down...