My understanding of Moodle is that it has always promoted a collaborative approach to Moodle. The original Tracker item goes back to 2011, and been somewhat ignored until now. The idea would be to do this from the Site Admin > Users > Permissions > Define Roles and select the cog for the Student Role, I would think. Doing it at the Course level is messy and labour intensive. The change to the Capabilities and Permissions of Users is the quickest and cleanest way of achieving your goal, if it still works, of course.
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