   (define-key map "B" 'rdebug-display-breakpoints-buffer)
   (define-key map "C" 'rdebug-display-cmd-buffer)
   (define-key map "D" 'rdebug-display-display-buffer)
+  (define-key map "O" 'rdebug-display-output-buffer)
   (define-key map "V" 'rdebug-display-variables-buffer)
   (define-key map "S" 'rdebug-display-stack-buffer)
   (define-key map "?" 'rdebug-display-secondary-window-help-buffer))

command invocation has an annotate options (\"--annotate 3\"."
  :type 'boolean
  :group 'rdebug)

(defcustom rdebug-restore-original-window-configuration :many
  "*Control if the original window layout is restored when the debugger exits.


;; -- display (a.k.a watch window)

(defvar rdebug-display-mode-map
  (let ((map (make-sparse-keymap)))
    (suppress-keymap map)
