Place a piece of DNA that you want copied in the DNA library, then connect the scanner and put the DNA to be copied in the scanner tray. Remove the tray by clicking on the scanner button. After you upload the DNA, click the compass button with the scanner still connected. For a split second, you should see the DNA that you put in the scanner in the library, yet if you check your scanner, you will see that the same DNA is also in the scanner. You can repeat this as many times as you wish.