Lists the (Default) and user-defined sets of keyboard shortcuts that you can use, modify and save, or delete. After any changes are made to a selected set, the word (Modified) is appended to the set name.
Opens the Save As dialog box, letting you name and save the selected keyboard shortcut set. You can rename any modified set to suit you needs. You cannot replace the (Default) keyboard shortcut set.
Displays all available commands when All Commands is selected in the Product Area list but displays only the relevant commands when a specific menu or palette is selected. Commands are organized into product areas such as File, Edit, View, and Palettes.
Removes the selected shortcut from the Current Shortcuts list. This option is unavailable when the command selected in the Commands list does not have any shortcut keys assigned to it.
See also 

Keyboard Shortcuts dialog box