How to change the name or web address of a page
You can rename a page or change its URL inside your Shopify admin
To change a page's name or web address, edit it in Online Store > Pages in your Shopify admin. You can change the page title at the top of the screen, and to change the web address use the Edit Website SEO link near the bottom.
Your store will update immediately with the new page details, though Hypervisual will only pick up the changes after you next save the page inside the app. (That only affects the listing in your Hypervisual dashboard and 'See Live Page' button, however, so it's not a problem.)