Vertical Scroll Horizontal movement

I’ve built a horizontal scrolling webpage, but would love the vertical scrolling of the mouse to move the page left and right, exactly as on this page:

http://video-portfolio.webflow.io/

I’ve tried to implement the mousewheel.js plugin on my site, but am a JS novice so can’t get it to work. My page can be seen here:

http://school-of-participatory-design.webflow.io/new-home

And here is share link (page is New Home)

https://preview.webflow.com/preview/school-of-participatory-design?preview=46fffc016cd8f8b4d188389a252e6920

Can anyone help with this, would be so grateful!