Filtering SerialNumber Landing Page by Customer Name or ID

I am trying to filter the panel card grid on the landing page of Serial Number but when I try to filter by CustID or Name I get an error that those column names are invalid. I realize that the query being passed into the BO will not necessarily match the underlying SQL query. Does anyone know what the column names for CustIDCustID and CustIDName are? Or how do I find this out?