Customize Search Results page with WP Show Posts PRO

Hi Guys,
I am trying to customize the search results page layout. To do so:
1) I created a Post List (2 columns + featured post + masonry).
2) I created a Hook Element, pasted the php code and place the hook on the search results page.

I am not getting positive results tough: the results from each search itself are random and I am not quite sure where exactly I have to hook that php.

Could you help please?

Thanks