How do I change the tags on one of my existing uploaded scores?

It's labeled as Beginner, Piano for Beginner etc and it certainly is not, it's a very challenging piece. I really don't remember adding those tags myself at all, they must have been somehow auto-generated or perhaps I just accepted them without looking when I originally uploaded?

Either way, when I go to 'update score' I don't see any way to adjust this. Do I need to do it inside of the actual MS4 app? I don't see it in Project Properties there either. Any help would be much appreciated.