Hello Paul
Thank you for your help.
I have now add the code (from your site for vers. squarespace 7,0)
I have then at product name Matcha Sencha used the | between the two words and you can see the link here
https://www.denfransketehandel.dk/alle-te
Regarding JavaScript - is there a code I shall use to make it work? some kind a JavaScript code that must be add to Code Injection??