Using 6 Text Widgets in a Area designed to hold only 4 Text Widget for

I am currently using Genesis Education Pro Theme from Studiopress (https://my.studiopress.com/themes/education/#demo-full) and in one section which is originally designed to hold only 4 Text Widgets, I would like to use 6 Text Widgets. What should I do in order to solve this? I presume this has got to do with CSS?