How to use DFY building blocks

From the editor page, navigate to the Sections part of the Page

You can use the search bar to search for the section you'll like to add, like 'about us'.

After you have selected the section you'll like to add, click on it to select then click the add button on it

When it pops on the main edit screen, you can edit it to fit the colors, text and size that you want it in.