https://courses.reallusion.com/home/character-creator/cloth-and-outfits?v=character-creator-3-tutorial-creating-clothing-from-obj-files
I find this video, I need to create a cloth from an obj/fbx file.
FBX file is: https://www.cgtrader.com/3d-models/character/clothing/old-leather-coat

First probleme: can't select the obj file only the fbx file (in the video it is an obj file)
Second probleme: "the fbx key file path is empty" What fbx key file?

How can I import a downloaded obj/fbx as a cloth?