Returns or sets the amount of space before the first line in each paragraph of the specified text, in points or lines. Read/write Single.
Example
This example sets the spacing before paragraphs to 6 points for the text in shape two on slide in the active presentation.
With Application.ActivePresentation.Slides(1).Shapes(2)
With .TextFrame.TextRange.ParagraphFormat
.LineRuleBefore = False
.SpaceBefore = 6
End With
End With