Would love to see TOTAL MINUTES vs EXERCISE MINUTES on Activity Overview

I like to see how many of a student's minutes per week are spent on exercises, as well as the total minutes. This is not shown on the Activity overview page where I can see all students' activity. This would be a great addition, as it would streamline my grading by seeing all of this information in one place. If I have to look student by student, it adds so much time. Especially if I view a custom date.