expression.SpaceAfter
expression Required. An expression that returns one of the objects in the Applies To list.
Example
This example sets the spacing after the first paragraph in the active document to 12 points.
ActiveDocument.Paragraphs(1).SpaceAfter = 12
This example sets the active document to three columns with a 0.5-inch space after the first column. The InchesToPoints method is used to convert inches to points.
With ActiveDocument.PageSetup.TextColumns
.SetCount NumColumns:=3
.LineBetween = False
.EvenlySpaced = True
.Item(1).SpaceAfter = InchesToPoints(0.5)
End With