Is there a plugin can done toggle child categories like this?

Hye, Im new to wordpress, my blog have many categories and sub categories, and I had found to manage it by using this type of toggle. But I cannot done it manually since I dont understand how to do it in my template. It seems like my template is coded quite different from what the author of the script was done with his site.

So I want to know is there any easy way by using the plugin available??

here is the example of the effect: https://www.problogdesign.com/wp-content/uploads/2007/08/categories_demo.html

and this is the tutorial of how to do it:
https://www.problogdesign.com/how-to/cut-category-clutter-and-toggle-visibility/