Actually it would be the effects file that needs looking at. Open the aircraft.cfg (using MS Notepad) and look for the [lights] section. The strobes, nav lights, etc., used are all listed there, with their corresponding effect filenames (e.g., "fx_strobe"). If the aircraft uses default effect file names then changing it would obviously affect all others as well, not recommended. Could change to the filename can be made in this entry (e.g., "fx_strobe_F16", then copy the same effect file, rename it accordingly, and then make the required changes to the effects file. Note: the position of the lights is also changed here using the coordinates in the [lights] section. Good luck.