The article provides instructions on how to use the `add_role()` function in WordPress, which allows users to create custom roles with specific permissions and capabilities
The `get_shortcut_link()` function in WordPress retrieves the Press This bookmarklet link, which can be used to quickly share content to Press This without copying the URL
The `delete_site_transient()` function in WordPress removes a site transient from the database, which is temporary data stored across an entire network on a multisite installation