Allows you to set a page as the base URL for a post type, much like you can set a page for your blog posts.
This gives you some flexibility when using plugins or themes that provide custom post types. It's not unusual to want to nest these a little deeper in your site's page hierarchy.
Just activate it!
The plugin adds a settings section to the reading settings page where you would normally set a static home page and page for your posts.
You can choose a page to act as your post type archive page and also as the rewrite slug for posts within that post type.