Home Page – Demo WPBakery content

Hello, I have just installed the Highend Theme. I have selected the “Presentation” demo to begin the configuration/build of my site. When I go into the page edit screen (using the WPBakery Front End Editor) there is nothing there. Am I doing something wrong? I was hoping to just change the text and pictures but maybe thats not how it works.

Thank you!

(This is the first site Ive built using these tools, so i apologise if i’m missing something obvious)