Hi Darrius,
Every theme has their own UI and based on the UI design this theme has an off-canvas menu button on the menu and has no option to add an extra button in the menu.
In this issue, you could use the off-canvas menu. Moreover, in our last update of the theme, we have fixed all of the off-canvas menu issues. So, please use the latest version of the theme.
Best Regards,
ThemeLooks Support Team