Public Function AddSync( _
   ByVal Face As Object, _
   ByRef Origin() As Double, _
   ByRef Orientation() As Double, _
   ByVal Length As Double, _
   ByVal Depth As Double, _
   ByVal Height As Double, _
   Optional ByVal Type As Variant, _
   Optional ByVal RoundType As Variant, _
   Optional ByVal DieRadius As Variant, _
   Optional ByVal FeatureOriginOffsetX As Variant, _
   Optional ByVal FeatureOriginOffsetY As Variant _
) As Louver