Printing cards on a page in a specific order

Hello.

I'm creating a set of cards that are double-faced.  However, the cards are for an entirely different game from Magic, so using the double-faced card template that's built into the program won't do what I need.

I have two sets of cards created, each of nine cards (let's call then set A and set B).  The cards in set B are the backs of the cards in set A, and since each card back is unique, I need the cards to appear on the generated .pdf in a certain order, so that everything is lined up properly.  No matter what I do in MSE to change order of the cards, they are always printed in the same order.

Is there a way to change this?

Thank you in advance for any help, and thank you also for this fantastic program.

bocharuk