Exporting LOD from 3ds Max


I am having trouble about exporting LODs from 3ds Max. How do you export a object with 2 Lods from 3ds Max using Babylon’s plugin?
Everything look okay with the naming convention but when I export it, I only have one gltf file. I should have 1 gltf file for each LOD right? And importing it in MSFS is not working as well.

Also, is there any way to generate the xml file with Babylon? At the moment I am using the Multi Export script to generate the xml file.