How to uncheck the chapter to take the test again

In ROS Basics in 5 days, how can I uncheck the passed chapter to pass the test again?
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@skylinerobotics
If you took a test (the knowledge check) to pass the unit (chapter), you cannot take the test anymore because it is designed to be passed only once.

If the unit has a quiz, you are free to fine-tune your solution to it at any time, and also submit it for auto-grading (if eligible).

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