Trying to change the default from "sales number" to "customer order" in the SU-A Maintain Drill Downs.   I'm able to change the columns to the place I want but unable to get the "sort keys" to default to "customer order".   I have it listed under the SU-A in the order we want, but need to be able to have the Sales Order - Search to default to "customer order #".   Any suggestions.