How do I add a column to a lookup form?

Please direct me to the correct forum if this is not the appropriate place for this question.

Am looking for direction on how to add a column to a lookup form (?) (in EBS 11.5.10).  Specifically here's what I'm trying to do:

In EBS/Payables, a Supplier Inquiry will give you a lookup entitled "Supplier Name" with the following columns in the lookup:  Supplier Name, Number, Taxpayer ID, Tax Registration Number.  But an inquiry by Invoice with a wildcard on the supplier will give you a lookup also entitled "Supplier Name" that has the same columns as before but also includes the "Active" flag (Yes/No) for the supplier.  The customer wants to have the active flag they see via the invoice inquiry also show up when they look up suppliers via the supplier inquiry.