In dashboard design mode, how can you access the source workbook for a widget?

In dashboard design mode, accessing the source workbook for a widget is done using the actions button. This button enables users to perform various interactions with widgets, including accessing their underlying data sources. By utilizing the actions button, users can easily manage the widget's details and navigate to the source workbook associated with it, allowing for better data manipulation and understanding.

While the other options may refer to different actions or features within the dashboard design environment, they do not directly lead to accessing the source workbook of a widget in the same straightforward manner as the actions button. The focus on the actions button as the primary means underscores its significance in providing access to essential functionalities related to widgets within the dashboard design.