Whether you're struggling with a particular question during an exam or just want to revisit it later, the flagging feature allows you to mark questions that you want to retake later. To flag a question, tap the flag icon located at the bottom of the screen when you are in the middle of a live exam or question.
This will save the question as a “Flagged Question” that will then be accessible through the Build Your Own Quiz study mode.
Note: The Build Your Own Quiz study mode is only available to premium users.
You can access these questions by then clicking on the Build Your Own Quiz study mode in the Study Dashboard.
Premium users can then build a custom exam that can include these flagged questions.