R42520 Question

Our client runs the R42520 in batch and chooses to see the backordered items printed on the pick slip.  We have that set up, but are now running into an issue due to the number of backordered items they have. 

I'm curious to see if there is a way to have the pick slip only print for those orders that actually have another item that is available to ship.  They would still like to have the backorders print, but only if it's not the only thing on the ticket.  Since they run it in batch, they are ending up with thousands of pick tickets that only have backorders on them.