The behaviour of the Shipping Options window is erratic and unpredictable.
Sometimes the window appears without the normal MAC controls - red, yellow, green buttons. If this happens, sometimes changes are saved and sometimes they are not. You have to always check.
Sometimes the window appears with the normal MAC controls - red, yellow, green buttons. Changes are saved if you close the window using the red button.
This is a real time-waster, because you always have to check your changes. Why does the window appear without the red/yellow/green buttons?