When I want to edit a graph with yEd, the first thing I always do is right click the edit area to let yEd get the focus. But after I do that, yEd will add a rectangle or thing that is set to "use as default" opinionately. Oh, I have to delete it every time!
maybe there is a setting to disable this feature?
But what I really want to say is that why design this great function to make me Collapse？