Yesterday I was working on my routes, a number of which originate at a common point just outside the entrance of my harbor. I tried to move that point a little and pushed one wrong button (probably the cancel button) and instantly lost that point from all my routes. Then I made things worse trying to fix it. Therefore, it would be nice to either have a warning/confirmation sequence before one can do real damage, or better yet an "undo" button. Until then, I guess I will just have to learn how to back up by routes and points.