This section is very easy to be enabled and used. Bear in mind that this section shows the content of a corresponding page ! So again you have to create a nice page and add some content. But what kind of content to add to this page?
Create one page.
If you have enabled the Foogallery Plugin add a gallery to this page via its shortcode. It is very easy to use the Foo Gallery Plugin 🙂 You can read its docs here
Go to the customizer and find the “Gallery Section” and fill all the fields… Voila!