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Hide selected assignments in the unsubmitted assignment list. This extension lets users hide assignments they consider unnecessary from the "Unsubmitted Assignments" list in manaba, the educational support system used at the University of Tsukuba. This feature can make the list of unsubmitted assignments easier to read. How to use ① Press the "Hide" button at the right end of the list to hide the assignment in that row. ② Press the "Show (Hide) Hidden Assignments" button to toggle the display of the hidden assignments list. ③ To show a previously hidden assignment again, press the "Restore" button at the right end of the hidden assignments list to restore the assignment in that row. Note: This extension is not an official university product, and the developer cannot accept responsibility for any disadvantages resulting from its use.