HSA3

Site URL: https://www.supernetwastebasket.com/ I'm not sure how to tag this question. I have built two websites on squarespace. Just for my own businesses. Now I want to merge these under one umbrella website. Do I need to start over or is there some way to migrate existing websites to a new site? I will build a new site and I would like to have, for example, www.supernetwastebasket.com (one of my existing sites), be a subsection of the new site. is this possible?