Hi Tay,
Please check out the screenshot to setting blog page header work from ( global header settings ) theme option http://tinyurl.com/y93bjuta
Moreover, the theme is a niche theme for Hosting business and using the WordPress default blogging system.
In this issue, you could use sidebar & widget to show the categories of blog OR you could hire someone else to customize the theme to make a custom blogging system based on your needs/requirements.
Thanks for your understanding.
Best Regards,
ThemeLooks Support Team