Seeing Back Order / Oversold quantities filter/column on Deliveries Page

We often use the oversell feature but find we can get caught short when suppliers unexpectedly run out, leading to a number of pending orders where we have to monitor manually if the product is coming back in. Could an additional column be added to the Deliveries page where we can see the number of orders/quantity of product on Back Order for that particular SKU? That way when you are writing a line off you could see that there are orders that need addressing for that SKU as the stock will not be coming back in soon.