GalleryGame theme editor

Hi Daniel,

I would like to change the quantity of games posted every page..could you pls help me to edit in Gallery Game theme.Now it displays 16 games/page.and can I create one more column then I can have 03 columns of games in main body page( now only 02 colums display games)
thank you

https://ww.wp.xz.cn/plugins/myarcadeblog/