Show Drop-ins on Classes Page and Class Manager

It'd be really wonderful to be able to see the # of drop-ins on the Classes page on the Admin-User's Side of things, as well as on the Class Manager without having to either run a report or click on seperate links to see the drop-ins. On the Classes Page, you could make another optional column on the far right next to the "Enrollment" Column. In the "Drop-ins" Column, there could be the # of drop-ins & which dates.

It'd also be conveinant to show the drop-ins on the same place that you can see today's attendance on the class manager.

Many of our students opt for just dropping into classes, and then some students prefer to enroll in a whole session of one class. It'd be great for staff and teachers to be able to easily look at how many people they are expecting for class that day.