Year Built field?

Looking for advice here… I recently upgraded to a Vision site from an older LEC. On our LEC we had pages for historic homes (built before 1940) and mid-century homes (built from 1950-1970). But for some reason with the Vision site we lost the “Max Year Built” field in the IDX snippet. Any suggestions on how we can replicate those searches without that field? Not sure why it wasn’t included… it’s pretty handy because some people don’t want to search for houses built after a certain year. REW if you’re reading this could you please add that back?