I have 2 hotkeys for dired, that work in GUI mode in Emacs:
(add-hook \'dired-mode-hook (lambda () (define-key dired-mode-map (kbd \"C-\"
Look out for loadkeys. At least in Debian/Ubuntu it's in the package kbd. With it, you can modify your keyboard layout and probably also some more "exotic" key combinations.
loadkeys
kbd