To create a shortcut:

1. Click Tools>Customize…. The Customize Toolbars and Shortcuts dialog box will open.
2. On the Keyboard Shortcuts tab, in the Categories field, select a category.
3. In the Commands field, select the command for which you want to create keyboard shortcut or whose shortcut you want to change.
4. Click inside the Press new shortcut key field and then, on your keyboard, press the keys you want to use as a shortcut for the selected command.
5. Click Assign. The keys you specified will be added into the Current shortcut box.
6. Click OK to save the changes.
7. To return shortcuts to their default values, click Reset (for a selected command category) or Reset All (for all shortcuts).