If you have created a custom page for your blog, portfolio, staff or testimonials and you want to add it to your breadcrumbs you can do this via theme settings. Below you will find instructions on setting the “Main Page” for your Blog or other post types.
Blog (Standard Posts)
Since the blog is made up of standard posts and doesn’t have the same editor admin page the setting to define your primary page is actually located under Appearance > Customize > Blog > General. By selecting your “Main Page” it will add the main Blog page to your single posts, category and tag archives.
Post Types (Portfolio, Staff, Testimonials)
To select your “Main Page” for your custom post types you’ll want to simply go to the “Settings” page for that given post type. See the example below: