Part Shape Tool Modes

Current part shape tool is awesome addition to the game as many others tools and feauters in comparison to Simple Planes editor, but it lacks some versatility.
My suggestion is to add free transform mode to it.
In current version, when you trying to change "edges" position it often affects edges from opposite side which is critical for complex shapes.
In free transform mode you will be changing the position of only one "edge" you needed.
Also it would be great if in free transform mode we can directly edit all 6 sides of shape instead of given two.