I have an order containing five product lines (A, B, C, D, E) C, D and E have been shipped and invoices. The customer now decides he no longer desires A, B and I need to cancel them out, returning the reserved stock.
But if I "edit" the order, I have no products left and it does not want to save. if I "void" the order, it tries to void the payment (do not want) If I "cancel" the order it also tries to void the payment.
What is the proper method of cancelling and returning to stock the two remaining lines on this order?