Dashboard actions in data visualization tools can have multiple source and target sheets, allowing for comprehensive and interconnected views of data. They can be set to run on different user interactions such as Hover, Select, or Menu, offering flexibility in how users interact with the dashboard. Additionally, dashboard actions can perform operations such as Filter, Highlight, or Go to URL, providing dynamic and contextual responses to user actions. Therefore, the correct choices are having multiple source and target sheets, running on various interactions, and performing specific actions.