I feel like, although the same as W28, the movement speed in the editor is still too slow. When I have to hold shift down all the time to be getting from one part of the ship to another, it becomes a bit excessive. The standard speed should probably be the shift speed, and the shift speed should be much faster. Also, a 'slow' speed could be added by holding down another key (ctrl, for example).
Just my two cents about trying to build something several hundred meters long...