The Drzewiecki Design sceneries use a compiled (.sdx) variant of an xml file, which is located in the C:\ProgramData\12bPilot\SODE\sdx directory. Just rename the KDCA_X.sdx file to KDCA_x.sdx.OFF and it's the same as disabling the xml for a scenery that uses that. Unlike the xml files, though, the only option is to remove the whole thing--you can't edit the sdx files just to fix a few jetways.
Regards
Bob Scott