Allow mutability of vertical lift after copy

It would be nice if you could modify a vertical lift when using "shift" placement or copying, presently you have to re-select a lift from the menu to be able to adjust lift distance or input/output designations.

and the ability to reverse the image of the copied lift. Currently if you hit the mirror button, you see the image mirror of itself, but the direction of the lift remains the same. Then you have to select the lift and change direction in the menu. Instead, the mirror key should change the direction as well.