Shortcut Category: Shortcuts for PowerPoint
Shortcut Commands: Next slide on all slide shows, Previous slide on all slide shows

Default Shortcut Keys: <None>

Description:

This feature enables you to navigate advance forward or backwards all running slide shows simultaneously.

For calling from macros:

Sub PPShortcuts_AllShowsNextSlide()
    Application.Run "PPShortcuts.ppa!AllShowsNextSlide"
End Sub

Sub PPShortcuts_AllShowsPreviousSlide()
    Application.Run "PPShortcuts.ppa!AllShowsPreviousSlide"
End Sub