Sections are like pages within your app, or containers for content.
When you first create an app your browser will open the Content screen for your app. The content screen allows you to create sections and assign various sources or content to each section.
Sections for your app will appear in the Panel on the left side of the page. Content or sources for each section will appear in the center panel, under the list of source types. Your app will have a section created by default, called “New Section 1”.