Here's where you can use navigation shortcuts:
* In Finder windows
* In the Chooser
* In the list displayed in a directory dialog box
* On the desktop
Typing any alphabetic character moves the selection to the first item whose
name begins with that character, or the next closest successive character
in the alphabet.
For example, if you type the character "s", your selected icon may be the
System Folder, if no other files or folders come before the word System in
alphabetical order.
The speed at which you type in the characters is important. If there are
several files beginning with the character "s", you can type more of the
name to select the desired icon. If you type too slowly, though, the system
will think you want an icon beginning with a letter other than "s".
Pressing the Tab key moves the selection to the next icon in alphabetical
order. Pressing Shift-Tab moves the selection to the previous icon in
alphabetical order.
Finally, the arrow keys select the next icon in the direction of the arrow.