Can the arrows in the timeline be manipulated?


Is there a way to manipulate the flow of the arrows (for dependency) in the timeline? Some arrows are behind tasks which compromises the overview. I would like to let some arrows flow around those tasks for better visuals like in MS Visio. I don’t seem to be able to drag any part of the arrows. They are drawn automatically. The only way to change them is changing where the taks are located. Am I missing something?