In NetSuite, the "Add/Move content" mode allows users to modify a published dashboard by adding or moving portlets but prevents the removal of existing portlets. This mode is designed to provide a balance between allowing users some level of customization of their dashboards while maintaining certain controls over the dashboard's configuration. It ensures that critical information and tools remain accessible on the dashboard, supporting adherence to organizational standards and information-sharing practices while still offering personalization to meet individual user needs.References: NetSuite's help center and documentation on dashboard configuration and customization, detailing the different modes available for dashboard modification and their specific restrictions or capabilities.