On the Navigation Pane, click Notebook, and then click Document.
On the Tools menu, point to Configure, and then click Document.
The Configure Document Layout dialog box appears.
Below Choose document layout to configure, click the Manage Layouts link.
The Manage Document Layout dialog box appears.
Do any of the following:
Add a custom layout:
Click the layout you want to copy, and then click Copy. Then, configure that layout.
Rename a previously-added custom layout:
Click the layout to make the name editable. Edit the name.
Delete a layout:
Click a previously-added custom layout, and click Delete. The Delete Document Layout question box appears. Click Yes.
Click OK.
Shortcut keys for the Manage Document Layout dialog box are:
Alt+C for copy
Alt+D for delete
Alt+H for Help
The Tab key moves the focus from top to bottom, and then left to right through the layouts and buttons.
Pressing the Enter key is the same as clicking the button with the focus.