Question - How do I add Proficiency in English to an individual student and report on this?
Answer - Proficiency in English can be added to a student on the student profile, under the extended tab. In here under the Personal information header you can add the proficiency. This can then be reported on via Reporting > Reports > Students (tab) > Languages/EAL.
If you need to apply Proficiency in English to a large number of students, you can do this in Group Updater (Admin > Students > Group Updater), and select Proficiency in English from the Student Attribute dropdown: