I was looking at the "Transfer Files" page with the "Update Maps" entry. Above it is an "Update Charts". Does that mean if I put the sectionals, enroutes, approach plates, and airport diagrams on an SD card and use this entry to transfer them to the memory stick installed in the back of the unit? This would be a lot easier than climbing in the plane upside down and reaching through the wires behind the panel to remove and put back the memory stick on each unit (dual 5600s) every 4 weeks.