OS X: using the keyboard to select an option in a message window / box?
Solution 1:
This is really annoying I can tell, but you can tab through dialog boxes.
Go to "System Preferences" > "Keyboard & Shrotcuts".
At the very bottom there will be an option saying about "full keyboard access". Check the radio button that says “All Controls” and here you go
Solution 2:
Most applications will also accept some keyboard commands for those dialog boxes:
- Esc for Cancel
- Return for the default (blue) button (usually Save)
- Command-D for Don't Save.