How to hide an item in the list of families and subfamilies?

To hide an item from the list of families and subfamilies, you must first access it:

In the settings, you will need to select whether you want to “Show” but also hide from the menu.

As a portal editor, the item will be seen with an icon indicating "hidden", and for citizens it will no longer be displayed, although it will continue to be accessible from any link where you have advertised it.

This way you can create your own items related to a "parent" item but that in practice do not generate much "redundant" information in the structure of families and subfamilies.