To display feed items from sources assigned to the Entertainment feed category, just use the following shortcode:
[wp-rss-aggregator category=’entertainment’]Please note that the shortcode works without the Feed to Post add-on running.
Use the slug of the category to refer to it, as shown below.
You might also want to display feed items from two or more categories. In that case, it’s also a simple shortcode modification:
[wp-rss-aggregator category=’entertainment, water-sports’]