I consider this a bug. Accessibility does not really exist anywhere in GHL, especially for dialogs. I would be great for any OK or CANCEL dialog to: 1) default to the OK key (so an enter button is all the user needs to do), 2) do a CANCEL if they press the Escape key, 3) respond to hotkeys with underline character that you press with the Ctrl key. Such as Ctrl + 0 (OK) or Ctrl +C (CANCEL). I need since my screen cursor vanishes from time to time especially on the exit from a new Website, "Do you want to lose your changes?" dialog with its OK and CANCEL.