You can create a nested accordion using the Accordion Plugin. This article will help you to create nested accordion.
How to create a nested accordion?
To display a nested accordion, you need to create another new accordion. If you need to learn how to create an accordion, then read this document.
Now copy the Shortcode from the newly created accordion.
Then paste that Shortcode inside the main accordion content.
Using this method, you can create an unlimited level of accordions.
Make sure you enable the shortcode option for content.
