Something you may have never experienced before
By default WPThemeBuilder always comes with WP-Pagnavi plugin. This plugins displays page numbers in your theme archive and home pages if you have many posts. WPThemeBuilder have many different pagination styles to choose from. To Choose a pagination style

Now simply click on a style you like and popup will be closed and the selected pagination style will be applied.
In order to preview the look of your applied pagination style, you always have to click on archive tab because that is what contains a list of all of your articles/posts/stories etc. You can also see it from home page tab if you have added an archive list widget in home page.