I am using Moodle to input grades and I told my students I would drop their lowest grade for a particular category. The problem is I already created they category and have inputted four grades so far. When I click on "edit," the drop lowest grade option is blacked out. However, when I create a new category, the option is available.
Is it possible for me to edit a current category to include this option? I've put a photo below of what I'm seeing.