There are pre-defined keyboard shortcuts for commands that you use frequently. You can change pre-defined shortcuts, or create keyboard shortcuts for commands that do not currently have shortcuts. The options available in the Customize Shortcut dialog will be mode-specific, depending on which mode you opened the dialog from.
Keyboard shortcuts customized in one mode will not take effect in the other modes, even if the defined command name is the same.
If a shortcut is already assigned to a command, then assigning it to another command will unassign it from the original command.
To Customize Keyboard Shortcuts:
In Manage, View, and Edit mode:
To remove an existing keyboard shortcut, select the keyboard shortcut in the Current Keys box, and then click Remove.
To Define a New Keyboard Shortcut:
The keys display in the Enter a new shortcut key text box. The Currently assigned to field will display the function your entered shortcut is assigned to, if applicable.
The new keyboard shortcut displays in the Current keys box.
To remove all custom keyboard shortcuts and restore the default keyboard shortcuts, click Reset All.