Is there a profile option to display only valid grades on employee assignment?

We are starting to use grades on employee assignments.  We are a recent R12 upgrade customer with our verison at 12.1.2 RUP 3 and 11i for database. 

On the emp assignment form, you can use the LOV (list of values) to search for all grades and note which ones are valid by the Yes/No indicator.  Does any know if there is a profile option that limits this LOV to only show or only select the valid grades tied to the job?  I thought there was a profile option that only allowed valid grades to display and not the full list but am not sure what it is.  This would help with data entry and lessen the risk if only valid grades would be displayed for that job.