How to create multiple OE Invoice from the same Shipment?

Hi all..

May I know how to handle or is there any work around to create multiple invoices against one shipment in Sage300? 

For example, 1 shipment from 2 orders, and there are 2 items in this shipment from each order. Need to bill the customer separately based on the order, so there will be 2 invoices. 

But, in OE Invoice, changed the Qty Invoiced to 0, it will increase the B/O Qty, and adjust back the quantity to Inventory, and need to do the Shipment again. 

May I know is there any work around method to handle this situation in Sage 300? 

Thank you.