Well, it's annoying because I have a to keep scrolling up and down, up and down, between where I can select a body and edit a maneuver to where I can actually set a body as a maneuver's parent and change the maneuver type. I may be using a smaller screen than you, though. Also, if you set a maneuver type to "orbit" without selecting a parent body, the generator lags horribly. Setting a parent body should really be required every time you create a maneuver. EDIT: This, too. But the scrolling thing was more of a problem, for me. EDIT 2: Though I just realized I could have pressed control and scrolled to zoom out.