LODs in gMax

Right now I'm going through each part of my aircraft (nearly 200 objects in the exterior alone!
) and adding "_LOD_400" to each one.

Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=13&t=33635
Only your topnode dummy needs the LOD tag.
Say you have a dummy "myaircraft_LOD_100" next link the fuselage to it (which should have all other parts below it in the hierarchy) and you're done.