How do you use the keyboard for navigating dialog boxes

[JohnAtl]

I had this weird experience recently.

Selecting UI controls with keystrokes

Okay, I was just fooling around in Preferences | Keyboard | Shortcuts, and even though I had Use keyboard navigation... turned on, it was only moving between edit controls. I turned it off to see what was different (nothing), then when I turned it back on, Tab started moving between edit fields and buttons as it should. So this may be solved.

This is something I think Windows does better out of the box than Mac.