For some reason I cannot find out how to edit the text and countdown on the Campaign home page. I have looked on the visual editor where it says Upcoming event and it only lets me edit the buttons. Under the events plugin I can change the title only but not the text and countdown.
“Upcoming Events” visual composer block is using date of the specific event. So, all you need is to change date of your event and countdown will be automatically adjusted.
NOTE: Unyson labels its blocks as "visual composer block", but this doesn't mean that you will need WP Page Bakery plugin (previously called Visual Composer).