Corporate fotografie free- Featured page grid content

Dear all, I use the corporate fotografie (free). Based on the demo , https://catchthemes.com/demo/corporate-fotografie/ , I would like to set the same "featured content page grid" (visible under "PROJECT"). It's not the Featured Content option (I tried), visible under the title "FEATURED". it seems my "appearence > customize" menu does not provide this option. Is that because I use the free theme ? many thanks for your help. Cheers. Claire PS : Here is the website I work on http://clairepryet.fr/ At the moment, I setted up the Featured Content option on the homepage. But I'm not satisfed with the appearance of the layout.