This example appends the string "Test version: " to the beginning of the title on slide one in the active presentation.
With Application.ActivePresentation.Slides(1).Shapes(1)
.TextFrame.TextRange.InsertBefore "Test version: "
End With
This example appends the contents of the Clipboard to the beginning of the title on slide one in the active presentation.
Application.ActivePresentation.Slides(1).Shapes(1).TextFrame _
.TextRange.InsertBefore.Paste