From Customize section, go to Homepage Setting you will see two options.
- Your latest posts: When you choose this option you will see these options.
- A static page: you will be able to set a page as Front Page and you will find the Post Page option as well.
From Homepage : you can set any page as Homepage .
From Posts Page : you can set any page as Blog.
Note: All the custom sections (front section/options) of the homepage will be visible on the Homepage setting once you set a page for the Homepage Setting option. As well as visible on Your latest posts.