It appears you can reorder the widgets from the System -> Widgets menu, but reordering the controls widget has no effect as it always remains in the first position. Most of the time, what I want to do from the widget menu is turn off my Varia radar's light.
Here's what I'm talking about in terms of screen shots.
Widget order...
But yet, controls remain in position one.
Lights are in position two even though I ordered it into the first position.