Class SlideNavigation (PowerPoint VBA)
The class SlideNavigation represents the slide navigation screen in slide show view. To use a SlideNavigation class variable it first needs to be instantiated, for example
Dim snn as SlideNavigation
Set snn = SlideShowWindows(1).SlideNavigation
Visible
Specifies whether the slide navigation screen is displayed during a slide show.
SlideShowWindows(1).SlideNavigation.Visible = True