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The blank is something not written upon. The blank component is disabled to create and customize any other components.
Field:
Field components represent individual fields/columns in datasets. You can use field components to control the display and editing of data in your applications. Field components are always associated with a dataset.
Check the link abx-fields for more details.
Report:
Navigation Node:
The navigation node is the navigational structure of the views presented to the end-user and is mapped to tabs and to view selection dropdowns. Supports linking to existing elements like entries, categories, and products, as well as custom URLs.
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