The Page Builder consists of three main sections:
Main Toolbar - The main toolbar sits at the top of the page and is where you can find links to the most common actions for the entire page.
Sidebar - The sidebar is where you will do most of your work. Located on the left-hand side of the screen, this section will change depending on what you are currently working on. It’s where you will edit individual content block as well as change the sort order of how content blocks appear on a page.
Preview Area - The preview area gives you a live look at what your page will look like to your site visitors.