Paraview Glance - loading multiple files

I don’t know if it still works but downloading an old glance file from v3.0.0, I found

    "sources": [
        {
            "id": "3",
            "props": {
                "name": "f1.obz",
                "dataset": {
                    "name": "f1.obz",
                    "url": "https://kitware.github.io/vtk-js-datasets/data/obj-mtl/Ferrari%20F1.zip"
                }
            }
        }
    ],