PLATE SELECTION VIA OPEN STAAD

Dear All,

I am not able to select Plates using OpenSTAAD.

I have created group "aaaa" for for some plates.

here is code

Sub Main()
Dim objOpenSTAAD As Object
Dim  aaaa As String
Set objOpenSTAAD = GetObject( , "StaadPro.OpenSTAAD")
objOpenSTAAD.View.SelectGroup (aaaa)
End Sub

Please guide.

Regards,
PN