private void addCustomShortcut(int keycode, int modifiers, @NotNull String description) {
    KeyStroke newStroke = KeyStroke.getKeyStroke(keycode, modifiers);

    for (KeyStroke keyStroke : myKeyStroke2SysShortcut.keySet()) {
      if (newStroke.equals(keyStroke)) {
        return;
      }
    }

    myKeyStroke2SysShortcut.put(newStroke, newStroke);
    myKeyStrokeCustomDescription.put(newStroke, description);
  }
private void addCustomShortcut(int keycode, int modifiers, @NotNull String description)