Before today, you weren’t able to edit the URL structure of your CMS Collection pages after you first create them — which was a pain. So we fixed that. Now you can change the URL slug of the folders that your CMS Collection pages live under as much as you’d like.
But URL editors beware: be sure to set 301 redirects if you’re changing URLs for a site that’s already live — that way you’ll make sure visitors with old links don’t hit a 404, and Google will know where to look for your new pages.