Presentation.LayoutDirection (PowerPoint)

Returns or sets the layout direction for the user interface. Possible return values are ppDirectionLeftToRight - Left-to-right layout, ppDirectionMixed - Mixed layout, ppDirectionRightToLeft - Right-to-left layout.

The value of the LayoutDirection property can be one of these PpDirection constants. The default value depends on the language support you have selected or installed.

Application.ActivePresentation.LayoutDirection = ppDirectionRightToLeft