Using mnemonics, you can access menu items and buttons. Mnemonics are underlined on the menu item or button. For example, on the File menu, the F in File is underlined, which indicates that Alt+F opens the menu.
The Macintosh platform does not support mnemonics.
Some versions of Windows® operating system do not automatically show the mnemonics on the menu. For example, you might need to hold down the Alt key while the tool is selected to see the mnemonics on the menus and buttons. Use the Windows Control Panel to set preferences for underlining keyboard shortcuts. See the Windows documentation for details.