Can you utilize POST-QUERY event in Oracle Forms with Forms Personalization?

I have a requirement to automatically add a new line item to a sales order after all other line items have been entered.

So far, I have not been able to find a unique custom event that is fired at the end of entering all the order lines. The same custom events are fired for every new order line. However, when saving the record at the end of the sales order entry, there is one unique event "Line.Order_Quantity_UOM : Post - Query" that is fired when saving the order record (CTRL +S).

To fire this event Enter Order Management Order Organizer then enable Custom Events in HELP → DIAGNOSTICS → CUSTOM CODE → SHOW CUSTOM EVENTS,