With BigBangThemes, all of our themes have several options available for “Post”, “Page”, or any different custom post type that the theme you’ve bought might have. These options are called “Meta Options” and can usually be found below the standard text editor area of the WordPress Page/Post editor.
Settings can differ from theme to theme and between different custom post types. These options will allow you to modify the structure of the page that you’re trying to edit. Albeit if you’re trying to add a sidebar, or to add more columns to your layout, these settings are generally available within the Meta Options area.