Generic Reviews

Hi Everyone,

I have recently added specific product reviews to my site using this blog https://support.wix.com/en/article/velo-tutorial-adding-ratings-and-reviews-to-a-wix-stores-site

However i now want a generic review rating which just looks at my over all review stats not product specific.

Please does anyone have the code? i am sure someone will have done this before and i am very new to code!

Thanks
Em