Preferences
The preferences can be traversed and set entirely with the keyboard, including the choice menus. It is an excellent place to practice and get a feel for how the keyboard control works. Pay close attention to which widget is selected at any particular moment.
Left and right arrows step the sliders back and forth.
ENTER on the choice menu boxes pops them up, then arrows and down. ENTER on the popped up menus accepts the choice and pops them down.
... und so weiter
To Be Documented.
