What Makes a Good Sandwich?
When you edit a post on the front end, whether you’ve gone to the post via the front end and used the Enable Visual Builer at the top of the page, or whether you’ve opend the post on the admin end and then used the “Build on Frontend” button, you have 2 layers of editing.

1st layer of editing:
To just edit the post content, click in the text area of the post to activate the black box and editing strip.
2nd layer of editing:
If you go to the top of the post and hover around you’ll see a green box and strip appear that says “Edit Body Template”. This gives you access to the template on the front end. Keep in mind that the changes you make on this layer effect all the posts and how they look.