A way to add a note within attendance when a dancer leaves class early

There is a 'tardy' feature, but there is no way to keep track of when students leave class early. We would really like to track this, especially for competition team students, so we can show parents how often students are leaving and make a case for dismissal if merited. Perhaps an option along with the 'here' and 'tardy' options; a different symbol, maybe a purple exclamation point, that allows the user to add a note such as 'left 35 minutes early with no explanation,' or, 'left 15 minutes for softball.'