pattern featured content

Hello, I try to use the pattern featured content. Now I see the possibility to have three featured contents on a row. What I want is that it is possible (like on the frontpage of toerfietsleusden.nl) to have eight featured contents in two rows of four featured contents. See the link to the website. https:www.toerfietsleusden.nl Can someone please explain how to do that? Kind regards Hans Hagmeijer