Is there any way to have the Rubric screen as the default screen in SpeedGrader?
Do you mean you want the rubric to automatically open when you open SpeedGrader?
If so, then there is no built-in way to make this happen.
However, I did write a script that can keep it open once you click the "View Rubric" button. See QuizWiz: Enhancements to SpeedGrader and Quizzes for more information. In particular, it functions by adding a button that lets you update the rubric, advance to the next user, and then automatically reopen the rubric on the next user.
With the appropriate programming skills, one could modify that script to automatically open up the rubric. When the rubric is open, it covers up the grade and it has not been a high-demand request to automatically open the rubric.
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