19m Mesh

Does anyone know how to install the 19m mesh that is was available HERE? I've downloaded the files and now I have a bunch of .bgl files, but I can't figure out where to put them, or how to activate them.
Thanks.
Thanks.

Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=21&t=59192
Does anyone know how to install the 19m mesh that is was available HERE? I've downloaded the files and now I have a bunch of .bgl files, but I can't figure out where to put them, or how to activate them.
Thanks.
Ahh, that's it, I forgot to add that extra "scenery" folder in the 19m mesh folder, thanks commoner.