Settings part contain very important information like domain settings, email and SMTP settings, categories and templates. Each instance needs to be configured before some content will be created.
Pages section contains all registered pages and in this section you can edit links in all registered navigations. With CMS you can create unlimited count of pages.
Widgets can be used only in the CMS editor which is used in Pages, Posts and Newsletter section. Each widget can contain own style, HTML, server-side code and client-side. Download free CMS widgets: componentator.com/widgets.
Posts can be used for different cases like blog posts, articles, etc.. Posts use CMS editor which is used in Pages section. Posts can be paginated.
Notices are short messages which use Markdown syntax and can be paginated.
Subscribers contains email addresses only. These addresses are used for sending newsletter from CMS directly.
Newsletter is used for sending emails to all registered subscribers. You can notify all subscribers easily about news, changes, discounts and everything else. Newsletter uses CMS editor too.