Approaches on the GPS and their design

I posted this in the scenery design forum since approaches are designed in XML and compiled into scenery *.bgl files.http://forums.avsim.net/dcboard.php?az=sho..._id=18460&page=Since one of my theories involves the GPS *.DLLs and the gauge XML software, I thought I would post a reference to the above and see if any of the XML gauge designers had any thoughts on the mysterious runway waypoint.W. Sieffert