We have checked the given url and it seems that it is not using the Pro theme. Please set up Pro theme first before we can help you in rebuilding the pages using Pro editor. At the moment, we cannot give any help because we do not have any knowledge with the theme that you are using. If you want it to replicate in Pro editor, you must section a section, row with a two columns. The row will have a border at the bottom and you may insert a text or headline for the left column and adding the button on the right column.
To have a background image as fullwidth, you must make sure that you are using Blank - No Container page templates. To know more about the different page templates in Pro theme, please check this out: