I don't believe the old website builder (v6/v7) ever supported this functionality.
vNext has it's pros, please see my other post. My favorite is that it's Responsive, so no more need for Business pricing just to get auto-mobile layout. I actually think vNext is much better suited for it's target audience, I can just pass it off a client with minimal explanation and they can easily tweak stuff without worrying that the page is all of a sudden gonna get a bunch of random white space at the bottom for now reason (I hated that bug in old version). If you're that pissed with it just do a chat and they will add v7 to your cart manually.