Need A Little Help

First time using Fantasy Grounds and I am at a loss. Tried Youtube and other sources but could not figure this out. I purchased The Death Knight's Squire from DM Guild. I got the .mod files loaded into Fantasy Grounds went to start new campaign and found the file in my Library went in and activated it but after this what do I do I cannot figure out how to start playing after that? Online I keep seeing guys with a start button but I do not see a start button anywhere. Thank you for any help

Go to this link and on the lower half of the page is a walkthrough video by Rob2e showing how to play.