Recently, I have taken on the job of creating a WordPress blogging site. I am relatively new to WordPress, and I am looking to add code to loops where certain articles won’t repeat themselves. E.G.: there is a feature loop, but if an article is in the feature loop I don’t want it in a random article section. I have found how to fix this on http://www.wpbeginner.com/wp-themes/how-to-avoid-duplicate-post-display-with-multiple-loops-in-wordpress/, however, can someone explain to me how to actually implement this into WordPress? I am using the Editorial theme.