Hi There! I'm not a programmer, but I'm an aircraft designer so I know something about this stuff. The shockwave 3D lights install only on default aircraft. There's no apparently simple way to find where the landing lights are located in fact. There's one "hacker" way tough. Looking inside the MDL file the landing lights are stored somewhere. One way to understand where may be to create gmax (or FSDS) models containing only landing lights, and sortuing out where they are. Cross-checking their coordinates in gmax/FSDS and attempting to find them out in the MDL file. a crude way is to use an already existant tool such as MDLC or MDLDisas to dump the model and read inside the output text file. Once you have the landing lights positiona, creating a program that adds landing light effects inside every aircraft.cfg should not be a hard task. Any takers? Thank you!