How to Edit a Page in Context of the Template

The ability to add new pages from the site editor directly. It can be accessed from the left hand sidebar. I'm really excited about is that I can now edit a page in its context and I see how it works in context of the template. Some people edited the template thinking it was a page and then found that edited piece or that added piece on every single page because they inadvertently changed the template. So you know when you edit a template, all of a sudden the title changes to page title instead of saying about us or and it also highlights that you are editing now a template part instead of the page itself.