'ppViewHandoutMaster, ppViewMasterThumbnails, ppViewNormal, ppViewNotesMaster, ppViewNotesPage, ppViewOutline, ppViewPrintPreview, ppViewSlide, ppViewSlideMaster, ppViewSlideSorter, ppViewThumbnails, or ppViewTitleMaster.
Sub view()
ActiveWindow.ViewType=ppViewSlideSorter
End Sub