How to add custom HTML, JS and CSS in Oxygen editor

This members-only tutorial provides the steps to inject custom HTML in Oxygen editor using jQuery and to style it to add a logo at the bottom of Structure panel.

Step 1

Install and activate My Custom Functionality plugin.

Connect to your hosting account using a FTP client and navigate to site’s /wp-content/plugins/my-custom-functionality-master directory.

Create a file named say main.js inside the plugin's assets/js directory having the following: