Since there is no manual on LPL, having trouble trying to figure out how to do these changes. 

My ideas on how to control this are:

1) For those who can't create One or Emp vendor,  limit display on list of vendor class to exclude ONE or EMP (PayablesSpecialist_ST) Business Class Vendor

2) If One or Emp is chosen in the drop down, send an error message that would keep them from selecting these vendor classes PayablesSpecialist_ST) Business Class Vendor

They don't want to go the route of the vendor security class becasue a payables processor will not be able to view all vendors for creating invoices. 

How to code is the question here.   Any ideas?