Adding breadcrumbs to website

I want to add breadcrumbs to the entire website, built in Sqaurespace 7.1

I find very little information online to wether it is possible, or how to do it.

I am looking for a way to do it myself, not buying an extension. 

I would love to get some directions to how to proceed with it. 

Hi,

What is site url & Which position you want to add breadcrumb & What should breadcrumb look like?

Hi! Thank you for your reply. 

That is the website: https://www.remoteinspection.no/
I want it to look like in this page: https://www.remoteinspection.no/oppgradering-og-vedlikehold-side

I was just wondering if there'a a better solution than doing it the way I did - manually.