Mount the draw paper as you normally would. This is the paper that your printing paper would normally sit on top of.
Mark where you would like the printed materials to sit. Cut a horizontal slit parallel to that line about a line below it. Insert the top of the gauge pin razor. Use a razor blade to slide behind the half-mounted gauge pin and cut another parallel slit. Insert the bottom gauge pin razor.
Mount the rest of your gauge pins. You may repeat this process on the sides. You'll have to cut vertical slits instead of horizontal ones.