With the new update, it is no longer possible to see current student enrollments and view all of the other options available if they want to change classes. Often they are changing to a class not listed as a request or it changes multiple class periods, so you need to be able to view the complete schedule matrix along with currently enrolled classes to know the best options. The new update does not open in different tabs, so it is impossible to view any of this material simultaneously.
On the top of the Find a Section area within Edit Student Enrollment, the student's current schedule now displays.
Yes, this would be an enormous help. Even having it open in a new tab or a new window would be an easy enough workaround that would help things significantly until some of the more substantive fixes can be implemented.