Posted on: April 29, 2016, 10:19:30 AM
Due to the way the widget works, to get the text to show, you need to enter a custom excerpt for each post (The excerpt area may need to be enabled in the "Page Options" dropdown tab, located in the top right corner of the page/post editor).
The specific layout from the plugin details page is demonstrated in the Content King demo. The best way to get identical results would be to install the Content King shaper separately, and compare the settings.