;;; KEY BINDINGS.
(define-key dired-mode-map "\M-o" 'dired-omit-mode)
-(define-key dired-mode-map "\M-O" 'dired-mark-omitted)
+(define-key dired-mode-map "*O" 'dired-mark-omitted)
(define-key dired-mode-map "\M-(" 'dired-mark-sexp)
(define-key dired-mode-map "*(" 'dired-mark-sexp)
(define-key dired-mode-map "*." 'dired-mark-extension)