This is no longer a separate form script, but an option. Once enabled, you will have access to all of the form settings.
Blocks and design
Now you can change the design of the page, not just a form.
You can add blocks from the site designer.
The top bar displays a form title, an auto-publish indicator, page and site settings, a preview button and an Embedding options button that allows you to send a link to the form or copy code to put it on the site.