Final Answer:
The shortcut to launch the research tab in document search is Ctrl + Alt + Shift + I (Cmd + Option + Shift + I on Mac).
Step-by-step explanation:
To expedite the research process in document search, using keyboard shortcuts can significantly enhance efficiency. In this case, pressing Ctrl + Alt + Shift + I (Cmd + Option + Shift + I on Mac) simultaneously allows for quick access to the research tab. This shortcut is designed to streamline the workflow, providing immediate access to the research functionalities within the document search feature.
Utilizing keyboard shortcuts aids in minimizing the time spent navigating through menus or interface options, enabling users to promptly initiate research tasks or access specific tools. By employing this specific shortcut, users can swiftly transition to the research tab, facilitating the retrieval of information or conducting searches without interruption to their workflow.
Mastering such shortcuts can enhance productivity and streamline the overall document search process, proving advantageous for users seeking swift and efficient research capabilities within their documents.