After installing and activating the WordPress Longtail Keyword SEO from Cat’s Plugins, form your WordPress dashboard, you can see “Longtail Keyword SEO”, click “setting” and ticking the boxes with the content you need. You can follow the image below.
In General, select location and enable WordPress Longtail Keyword SEO for : post, page, … and checking “Auto ping new post to services”
In Auto submit new posts to search engine: This feature will automatically tell the search engine that you have new post to index, so your content will be indexed immediately after publish, checking for Google, Bing, Yahoo, Yandex
Finally, click “Save changes” to save setting and use it whenever you need it.