Automatic Insert in User Defined form of Type Transaction

Hello Experts,

I want to insert data from 1 User defined form to Another User Defined form .

For Example We use this for inserting or adding Sales Order Automatically

If objMain.objCompany.InTransaction = False Then

objMain.objCompany.StartTransaction()

End If

Dim oSalesOrder As SAPbobsCOM.Documents

oSalesOrder = objMain.objCompany.GetBusinessObject(SAPbobsCOM.BoObjectTypes.oOrders)

What should i use for adding User defined form automatically of Type Document.

Please Suggest quick reply will be helpful