You can assign a shortcut key to invoke a command on the Action menu.
To assign a shortcut key
Click Tools, select Customize Toolbar, and then click the Keyboard tab.
The commands that are already assigned a shortcut key are listed under the User Key list.
In the Available Actions list, click a command you want to assign to a shortcut key.
In the User Key list, click an available shortcut key to which you want to assign a command. The key highlights.
Click Assign.
Click OK.