The ability to see the complete list of classes a user is a participant in from the user information screen. Maybe another tab?

Several teachers miss the ability to send message to selected users, when the teacher working on their Course. For example, sometimes only a selected group of students need to be notified for something regarding the course. Or, perhaps only teachers and the like need some information.

Have a look at the attached screen shot.
It would be very efficient if one could simply filter out the group of persons, by way of selecting Students in the Profile drop down box.
And then select some of the students by clicking on the Check box on the left for each student i question. Much like when removing users from the Course.