Wondering if anyone knows how to help with this.  I have some aurora/northern lights effects that are designed as a .bgl file, and are functional only in certain geographical areas, by lat/long coordinates.  What I want to do is change the lat/long in order to have a lightshow locally (as occurring in real life).  The only two ways that seem to be available are (1) to decompile the .bgl somehow, although for obvious reasons (piracy) there don't appear to be utilities out there to do this; or (2) to use the effects provided in FS default files to create a completely new file, although I am totally unaware of how to do this.  Anyone who has experience working with effects files that might be able to help, please let me know.

Thanks, of course and as usual, the obvious isn't what I am looking for - will take a good look at it all shortly.