Hello. I want to edit the default 737-800 aircraft of FSX fixing any problems and creating news features. There is some XML editor software that show, in real time, the changes done? I am using the AceXML of SDK pack, but it doesn´t show the gauge images during xml edition. The only way to see the result edition is starting FSX and load the aircraft. I want to edit the MFD.xml and PFD.xml archives. Thanks.