For that, you could try something like:
Code:
Sub Demo()
With Selection.Paragraphs(1).Range.Characters(1).Previous.Paragraphs(1).Range
If .InlineShapes.Count = 0 Then
Selection.ParagraphFormat.LeftIndent = InchesToPoints(1.4) ' Set the value of the indent
Selection.InlineShapes.AddHorizontalLineStandard ' Add the line
ElseIf .InlineShapes(1).Type <> wdInlineShapeHorizontalLine Then
Selection.ParagraphFormat.LeftIndent = InchesToPoints(1.4) ' Set the value of the indent
Selection.InlineShapes.AddHorizontalLineStandard ' Add the line
End If
End With
End Sub