[Theme: Wunderful] How to use Grid Layout

Hello! I’m really new to www.ads-software.com and just had the Wunderful theme installed. MOJOMarketplace offered the $150 deal to install it exactly as the live demo, but I like learning things on my own and didn’t want to spend the $150.

Bascially, I’m wondering if there’s a setting change I can make to use the Grid Layout instead of the List Layout on the home page? Or would this involve editing the CSS?

I’m not really familiar with CSS but am looking to learn. If anyone could tell me how to make this switch or point me towards a tutorial I would really appreciate it!