Creating "user friendly" Auto Suggest

Auto Suggest is great, but it isn't as user friendly as it could be.  For instance, when in Accounts Payable and using it in the Supplier Number field, it will not only display Suppliers, but all Address Book records - Customers, Employees, Organizations, etc.  In payroll, I set up an Auto Suggest on the ENDYOW field (which is the item for the Employee Indentification field) using the F060116 - this prevents Suppliers, Customers, etc. from being displayed, but it displays terminated employees, which generally speaking are not desired.  There is no way to add any data selection to the Auto