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LOM is the original (full-featured) tool for creating 3D model libraries.![]()
If you want to use custom objects in libraries then don't load them into the project to be read by the User Model Manager. put them directly into a library outside ADE and load that library into the LOM.
Absolutely not. ADE does not and never has created libraries. The library has to be created outside ADE using a tool like MCX. This can then be added to the LOM. BUT that does not load the actual model into ADE but just data about it.
I am somewhat confused here since ADE has always worked by importing the data about a library and nothing has changed. The only technical difference is that models are glTF and not mdl format.



if we are unable to re-use 3D models from a BGL or CGL loaded elsewhere via a package in MSFS' Community folder, MSFS will bloat, startup times increase, and system resource usage will become unmanageable, potentially impacting run time FPS.
www.fsdeveloper.com
www.fsdeveloper.com



Just to put my "two bob's worth in" (although I did not read everything in the past two or three posts as my head started to hurt)
I too thought that LOM seems 'different' to what it used to be and there now is the UMM (replacing User Models?). I am now wondering is this because the way that MSFS2020 has 'evolved'.
In any case I DO see scenery objects 'distributed' packaged in a .bgl which I guess is a 'library' and that ADE has never able to produce such a .bgl (which can be shared between different projects).
I posted a question on the Model Converter X forum asking if MCX could be used to create an MSFS (scenery objects) library and Arno replied that it can't but also "but you need to use the packager tool that comes with MSFS".
This is named FSPACKAGETOOL and is in MSFS SDK\TOOLS\BIN.
It (seem to be) can only be run in a CMD window (not surprising) and I have found the following YouTube video which I have yet to watch.
MSFS SDK Tutorial - How to build your packages outside of the sim.
I hope this is of help to anyone wanting to create a scenery library that they can distribute.
www.fsdeveloper.com

This is named FSPACKAGETOOL and is in MSFS SDL\TOOLS\BIN.



This is exactly what ADE uses to build projects.
And at the risk of suggesting y'all read the manual Check section 17 or search for Building Libraries in the online help. www.scruffyduck.org.uk/ade_2020_help
View attachment 76385
I have not suggested this before since it is an untested fudge but probably works and may break the log jam of this topic

https://docs.microsoft.com/en-us/previous-versions/microsoft-esp/cc707102(v=msdn.10)#the-terrain-systemI am not sure direct links will work. I get the same if I use the url you provide but there are no issues if you use the main url www.scruffyduck.org.uk/ade_2020_help trying to use direct links or any approach other than through this link appears to fail but then why use a direct link?



FYI I can only goto what ever I click on in the index in the online documentation. I can't do that when using the .chm
Mind you that does not worry me as I only wanted the .chm file to try and print it.
Fair enough but the combination of the help generator and the server I have does not seem to allow it. I changed the template to a different one but that produces two table of content panels - nothing in this life is perfect and it really doesn't matter what other help systems do if I don't have the means.