It drives me potty that when I'm creating a course at times I'll do something so that the elevation suddenly only covers a short distance, maybe only a few yards.
Firstly, what do I do to make that happen?
Secondly, how on earth do I get the elevation back to the full course elevation?
I can see a value to this but there's not much point if there are no instructions or helps anywhere to tell you how to use the feature!