# Sections

- [Section](/umbraco-cms/customizing/extending-overview/extension-types/sections/section.md): Introducing Section extensions, a home for custom content and functionality.
- [Section Sidebar](/umbraco-cms/customizing/extending-overview/extension-types/sections/section-sidebar.md): Use Section Sidebar extensions to add navigation, coordinate Section Views, and provide additional functionality inside Section extensions.
- [Section View](/umbraco-cms/customizing/extending-overview/extension-types/sections/section-view.md): Add auxiliary views to your own Umbraco packages, or to other areas of the Umbraco backoffice.