Here is the details about Schema Tab.
You can auto-generate some Google schema JSON-LD which are default in WordPress, like
- Article,
- News Article,
- Blog Posting,
- Product etc.
But don’t worry you can generate others schema data from single page/ post meta option. See the documentation
How to auto generate Schema? From WordPress admin menu navigate Review Schema => Add New => Schema
- Google Rich Snippet: Enable Google rich snippet option it will be auto generated schema for the selected category.
- Rich snippet Type: From Rich snippet category select Article, News Article, Blog Posting or product these 4 type will be auto generated schema.