Open the Ribbon Designer
You can customize the ribbon and the Quick Access toolbar by using the ribbon designer.
The top of the ribbon designer features a ribbon preview that shows the tabs, button groups, and buttons currently on the ribbon as well as the buttons on the Quick Access toolbar. The bottom part of the ribbon designer includes a clickable path to the ribbon item currently selected on the preview, design options for customizing the selected item, and a list of ribbon items editable from the same path. The path, design options, and list change dynamically as different items are selected on the ribbon preview.
For instance, when you select the Save button group on the default Home tab, the ribbon designer displays the path of the selected group (Editing Tab: Home), a list of the button groups currently defined at that location, and design options for customizing the button groups. Clicking a group or a button on the ribbon preview changes the design options and list to reflect the item you have selected.