That's not what this is though. It's an implementation of the techniques/technology used in Nanite. It doesn't load data from Unreal Engine's editor. One of the mentioned goals:
Simplicity. We start with an OBJ file and everything is done
in the app. No magic pre-processing steps, Blender exports, etc.
You set the breakpoint at loadObjFile() and F10 your way till
the first frame finishes.
That's not what this is though. It's an implementation of the techniques/technology used in Nanite. It doesn't load data from Unreal Engine's editor. One of the mentioned goals: