Payment terms on enter new sales order

The payment terms from the sales ledger account to appear on the screen of enter new order (preferably full option). Ideally below the customer order number. We have a customer that is taking vast numbers of calls a day and at the moment, they need to keep toggling between sales ledger and sales order processing to find the terms. This can cause upset with their customers as when its extremely busy, customers are being held on the phones so when they do get through, they're having to wait even longer as payment terms/credit needs to be checked first. Whilst not business critical, it certainly hampers efficiency and can cause upset with their customer base.