Converting Suppliers to Employee Suppliers

On the Supplier forms R11 there was a button that when selected converted a "regular" supplier to an "employee" supplier. We understand that that functionality does not exist in R12; however, we need to convert those suppliers who are employees to suppliers with type=Employee. Has anyone developed a process to accomplish this in R12?
We do not intend to use Oracle Internet Expenses to process expenses for the employees, instead we plan to use another vendor's Employee Expense software. So having the suppliers identified as employee suppliers is essential.