How to track the progress of loading a model if it consists of several files?

Question

three.js

I need to make a 3d model viewer using three.js. The model decided to load separately from the scene via the gltf loader. I did it as written in the documentation, but the problem is that only the head file is tracked, which weighs a little. Accordingly, the download process is displayed only for this file, but I need to track just the file that is pulled up later (it weighs 100 times more). The documentation does not say anything about this, maybe someone knows how to be? Here is a link to the project I'm working on: https://bqct.tech/3d-viver/ load events are displayed in the console

loaderG.load( 'scene.gltf', function ( gltf ) {
        	console.log('load');
            scene.add( gltf.scene );

        }, progres, function ( error ) {

            console.error( error );
            alert('error');

        } );
        function 	progres(e) {
        	console.log(e);
        }
    };