Many novice photographers have probably seen interactive panoramas on the Internet where they can spin and see everything around them. Often such content is called 3d panoramas.
360-degree panorama (virtual 3D/VR tour) is one of the types of panoramic photography.
The order is as follows: 1) upload to the site spherical panoramas from which you plan to create a virtual tour; 2) from the list of uploaded panoramas add each panorama to the virtual tour (Add to 3D tour link); 3) open the created virtual tour, edit the panorama order, select the main panorama, set transition points (tunnels).