Trim start and end of session

Hi,
First of all thanks heaps for developing this apps, it is so good! A common issue I and some of my mates have is we sometimes forget to stop the app at the end of a run. It’s not too much of a bid deal if you forget while packing your gear, it will mess up a bit your planning time stats but that’s ok. It is more a problem if you start driving with the app still recording, then all your stats will be messed up. I was thinking it would be great to add a feature allowing you to trim your runs. Ideally you could do so from the map since it is pretty easy to work out when you are not in the water from there!
Cheers,
Alex