If you wish to enter a number of transactions for the same supplier or customer, you can keep the supplier or customer displayed even after you process the current transaction.
To keep the supplier information displayed in the Purchases-Bill
window, on the Purchase menu choose Use the Same
Supplier Next Time, or click the button.
To keep the customer information displayed in the Sales-Invoice
window, on the Sales menu choose the Use the Same
Customer Next Time, or click the button.