...
To add this module to a space overview, go into the Space Overview Editor. To add this module to other pages in your Confluence space, use the Content Layout macro.
...
Module Settings
Label. Show only pages with a specific label.
Space. The module automatically shows content from your current space. If you’d like to show content from another space instead, use Text Variables.
Author. Only show content from one or more authors, by adding their Account ID(s).
Child pages only. Select to display only the first level of child pages. When left unchecked, the module shows all levels of child pages (grandchild pages)