Hi Renata
The documentation shows how to set up the featured services section here: https://uxlthemes.com/docs/trusted-theme/setting-up-the-home-page/
Select a page for each of the three featured services.
When you select a page from the dropdown selector, the title and the excerpt of the selected page will display in the box.
You can also change the icon which is diplayed above the title of each box, and there are more than 700 icons to choose from.