Markoz wrote on May 15^th, 2011 at 4:15am:

@Pinatubo. I often make the changes while I'm actually using the aircraft in FSX (accessing the Captain Sim > 767 ACE from the menu). I just reload the aircraft and the changes have been made. It always works for me.

Mark,

Of course, it works this way too. But when you are not using yet the aircraft in FSX, and to prevent any mistake, I think it is a good idea to check the changes before start a new flight.