Moodle in English

Our faculty wants a "major assignments" master calendar, in order to identify days on which too many teachers have scheduled major assignments before they impact students. In Moodle, students automatically see all the assignments in their courses. I want a way for each teacher to see a summary of major assignments schoolwide as they schedule their own. To complicate matters further, it would be most helpful for a teacher to automatically see what major assignments their students (not all students) have on a given day.

I am thinking about how to implement such a feature in Moodle. (I am an average programmer). Since we want to track only major assignments, we need to find a way to distinguish major from regular assignments. We also need to write a function to count major assignments for the given day only for students enrolled in the class.

Ideally, this counting function would fire as the teacher selects the assignment date. That way, the teacher could easily move the assignment from one day to another and see the impact on students' workloads.

In our school, it would be less work to create a new assignment type called "major assignment" than it would be to add a "major" checkbox to each assignment type. In our school, major assignments are not likely to be submitted electronically, and keeping the function in a separate module would avoid making changes to Moodle core code.

I could use your advice and feedback on this idea. Is anyone else working on a similar idea? Is there a better way to approach this task? Am I missing an existing feature in Moodle that could help me achieve this end?

Many thanks.