Before you get to know Umbraco UI Builder, you need to become familiar with the Umbraco UI and a few of its concepts. This is because Umbraco UI Builder reuses these same concepts for constructing its UI.

1. Section A distinct area of the Umbraco backoffice. 2. Tree A hierarchical structure to help organize a section. 3. Dashboard An intro screen for a section, usually with useful links for that section.

4. List View A list-based view of items in a tree node.

5. Editor The main content editing area is made up of tabs, fieldsets, and fields.

6. Context Apps A contextual section of a given editor UI. 7. Tabs A tabbed container of content.

8. Menu Item A context menu item + action.

9. Bulk Action An action to perform on multiple list view items at once.