ZOrder Method Example

This example adds an oval to myDocument and then places the oval second from the back in the z-order if there is at least one other shape on the slide.

Set myDocument = ActivePresentation.Slides(1)
With myDocument.Shapes.AddShape(msoShapeOval, 100, 100, 100, 300)
    While .ZOrderPosition > 2
        .ZOrder msoSendBackward
    Wend
End With