As for the lights... It's an FSX model deal. In order to have lights on wingtips that flex, you cannot use simpe FX lighting (cfg file).. the lights have to be modeled. There's a bug in the FSX model that ties landing lights to nav-lights.
It's not a "bug" at all. The modeldef.xml file that shipped with FSX SDK RTM and SP1a did not include the XML scripts for lighting.
I wrote and posted XML scripts for
all lights that may be added to one's modeldef.xml file well over two years ago at FFDS.
The modeldef.xml file that shipped with SDK SP2 and Acceleration has the missing light XML scripts at the very bottom of the file.