can you create index pages in squarespace 7.1?

Site URL: https://www.mayamukhopadhaya.com/

I would like to be able to put all my sections into one long scrolling page (Landing page, services, projects, about me, get in touch). All the tutorials I have seen so far explain how to do this with index pages in sqsp 7 but I haven't seen any tutorials for 7.1. is there a way to do this in 7.1? I believe my template is York. 

Your site is 7.1 York is a 7.0 template, 7.1 has portfolio pages and that is the closest thing to an index page in 7.1