Hi Manuel,
Thank you for your response. It is good to know that the Time and Energy values should be accumulated. When I created a new route using mouse clicks on the map, that is exactly what happened.
The original screen shot I sent you was a route that I created by uploading a GPX file from a previous trip. So it seems that when I upload that GPX, some of the time and energy accumulated values are miscalculated (see image). I'll see if I can figure out why that is happening and then raise an issue in github.
Alfred