Put 2 models in a single .mdx

[Dracarus]

Well hello, I'm new to editing models, creating maps and everything.
I have started to modify the models of my game and then I realized that the Headhunter and Berserker models are in a single .mdx and the ones I downloaded, those of Johnwar.
https://www.hiveworkshop.com/threads/troll-elite-headhunter-and-elite-berserker-re-classic.330954/
They are in separate .mdx files, and the game either reads one or the other.
So I wanted to know if it is possible to put two models in a single .mdx using the Warcraft 3 Model Editor.
Also if it is possible to separate models, as is the case with the Arthas of this same user.

Arthas Menethil (Re-Classic)

Arthas Menethil Base Model Credits Arthas Menethil (Paladin), Daelin Proudmoore, and Derivatives by Ujimasa Hojo Unit Type Melee Hero Author's Notes Visit Johnwar's Models Discussion for updates and links for my models. :smile:

www.hiveworkshop.com

 

[Dr Super Good]

I think this was done the same way as the town hall model, by having multiple mesh sets and making animations hide inappropriate ones. As such it is 1 model with 2 meshes but only 1 mesh is visible in each animation with 2 sets of animations, 1 for each mesh.