In the past, NECS has made some enhancements to the "MTD Sales" and "YTD Sales" dialogs, which are used during the Create/Change Invoice process via the "Prior Sales" button. These enhancements were suggested by customers to make the process faster and easier. Many NECS users found these enhancements made it more time consuming to enter an order quickly.
This new system option allows you to set the behavior of these "Prior Sales" dialogues to emulate the original system behavior.
Once you enable system option #175, when you use the Prior Sales feature in Invoicing to add multiple items on a new invoice, the dialog will stop at each item so you can edit it.