Most of these additions are concerned with flying/building space planes, but could also be nice when building a rocket. Display total mass: I would be wonderfully pleased if there were a small display that indicated the total mass of the rocket or space plane that you are building, especially when combined with the next addition. Toggle between full fuel tanks and empty: When building a space plane, it's nearly impossible to guess where the center of mass will be when the tanks are empty, which for me, frequently results in spinning wildly out of control and falling out of the sky. If the center of mass when empty were displayed, it would be easy to place the center of lift between the full and empty centers of mass and made controlled descent much easier. Center of Drag Display: I would give my right arm to be able to find the center of drag when I am building a space plane. Currently, I need to resort to trial and error to get the center of drag behind the center of mass, and a simple dot would make things much easier to deal with. I hope I'm not the only one who would like to see these additions to the game, as I think they would be very good to have and would make he game more enjoyable.
