Go to Google and type in "dog box car".
You will then find a result in the search results that is much larger than the others, because there are questions to open up underneath. You click on it, see the answer immediately and can go directly to the website by clicking on "more".
This module works in the same way. You can enter questions and answers for each category (as many as you want, but only one answer per question). These will be displayed below the product listing. In the source code, this is prepared as structured data so that search engines can read this FAQ (which we do not guarantee, of course).
Note for Modified Shops: this module is also available in the MMLC from version 2.0.5.0, including free updates.