I started to edit those "*.fbx.ini" files, sometimes better than to open fbx in ksEditor, i.e. you can mass replace LOD_OUT=0 with something else...
For that remove all other lines than VERSION=4 in header section.
[HEADER]
VERSION=4
;;;;DLC_KEY=0
;;;;USERNAME=
;;;;DATE=5/25/2019 12:47:43 AM
;;;;MD5_HASH=c145af5d1b507f244227794a9411baca
and you can then use a batch file with modded ksEditor (included in
https://www.racedepartment.com/downloads/lod-generator.24394/) to build a kn5 quickly
more info on "*.fbx.ini":
You can replace every "track.fbx_" with "trackside.fbx_"
to use it on another file "trackside.fbx" (rename it to "trackside.fbx.ini")
one (semi-)complete "track.fbx.ini":
---
[HEADER]
VERSION=4
[MATERIAL_LIST]
COUNT=2
[MATERIAL_0]
NAME=road_001
SHADER=ksPerPixel
...
[MATERIAL_1]
NAME=road_002
SHADER=ksPerPixel
...
[model_FBX: track.fbx]
ACTIVE=1
PRIORITY=0
[model_FBX: track.fbx_1ROAD]
ACTIVE=1
PRIORITY=0
[model_FBX: track.fbx_1ROAD_1ROAD]
ACTIVE=1
PRIORITY=0
VISIBLE=1
TRANSPARENT=0
CAST_SHADOWS=0
LOD_IN=0
LOD_OUT=0
RENDERABLE=1
[model_FBX: track.fbx_visroad]
ACTIVE=1
PRIORITY=0
[model_FBX: track.fbx_visroad_visroad]
ACTIVE=1
PRIORITY=0
VISIBLE=1
TRANSPARENT=0
CAST_SHADOWS=0
LOD_IN=0
LOD_OUT=0
RENDERABLE=1