Table of Contents
1, With your PrestaShop admin panel, go to Modules -> Module Manager section.
2, Find TT – Category Feature Module and click on configure button.
3, Select categories you want to show as category feature
4, For more Add Category Cover & Thumb Image, see below article link
https://www.templatetrip.com/help/prestashop-1-7-x-how-to-add-category-cover-thumb-image/