Within an organization, you can have an infinite number of spheres, which sometimes makes it difficult to navigate. In order to structure your network, you can create subcategories between organizations and spheres, or "sphere families".
In each family, you can group spheres according to type, similar use, number of members, etc.
If you are an organization manager, go to the "Admin" menu, select "Settings", then "Sphere families". You can create as many different sphere families as you need to arrange your organization. You can also manage sphere families by selecting "Spheres" in the "Admin" menu.
Sphere families are visible directly on the organization portal (as shown below).
Note: This feature is available starting from the Premium offer.