Yes or No Flag

[gatorfe]

I have a report that list operations completed by different employee numbers.  There are about 30 different employee numbers.  There is one generic employee number we use for various operations.  I want to add to the prompt page of the report a flag to see or not to see this specific employee number.  I dont want to do it as a value prompt were all the employee numbers show up and the user chooses all of them except this generic number.  Is it possible to add such a flag?  Thanks in advance for any suggestions!