Shortcut Category: Shortcuts for PowerPoint
Shortcut Command: Show Previous Viewed Slide

Default Shortcut Keys: Ctrl+Alt+Left

Description:

This feature allows one to view the last viewed slide in the same presentation. It doesn't work across presentations.

For calling from macros:

Sub PPShortcuts_ShowPreviousViewedSlide()
    Application.Run "PPShortcuts.ppa!ShowPreviousViewedSlide"
End Sub