For beginners, this is a great way to learn the shortcut keys. These are the underlined letters in menu items. The next box is for the accelerator option. A is the shortcut key. Tab to this item.
Accelerators are to the right of menu items.
It tells you how to complete the operation without using the menu. To hear and learn accelerators, check this box. Next tab to the descriptions item. D is the shortcut key. This is helpful information, especially for new users.