Adding a button to the Open Items List

Question

Hiya everyone,  I am trying to add a button to the Open List Items form (formType - 152) which is located in Reports -> Sales & Purchasing -> Open Items List.  When I attempt to add a button to that particular form it does not appear.  The only form I seem to be be able to add a button to is on the main menu.  I have added my code below:
Private Sub CreateMySimpleForm()
        Dim oItem As SAPbouiCOM.Item
        Dim oButton As SAPbouiCOM.Button
       oForm = SBO_Application.Forms.ActiveForm
        oItem = oForm.Items.Add("80", SAPbouiCOM.BoFormItemTypes.it_BUTTON)
        oItem.Left = 6
        oItem.Width = 65
        oItem.Top = 51
        oItem.Height = 19
        oButton = oItem.Specific
        oButton.Caption = "View Document"
    End Sub
Has anyone got any ideas.....Thanks

Answer 1

I have discovered that the button appears if the Open List Items window is open when I run my code so the button can actually appear on that form.  However, how do I change this line :
oForm = SBO_Application.Forms.ActiveForm
so that it specifies that the button will appear only on the Open List Items form.  When I change that line to:
oForm = SBO_Application.Forms.GetForm("152",1 )    ....it keeps on complaining that it cannot find that form. 
I'm not sure what the Count is supposed to be in:
GetForm(Type As String, <b>Count</b> As Integer) 
If anyone could help me out I would be grateful.....Thanks