How to Create a Navigational Toolbar in PowerPoint 2013
Switch to Slide Master View.
From the View tab on the Ribbon, click the Slide Master button in the Master Views group. Or if you like shortcuts, hold down the Shift key and click the Normal View button in the lower-left corner of the PowerPoint window.
Create the action buttons that you want to include.
Make sure that all the buttons are the same size and line them up to create a tight cluster of buttons.
You can easily duplicate a button by holding down the Ctrl key while you drag the button to a new location. This technique makes it easy to create several similar buttons, such as navigation buttons.