Allow user control of automated emails for attaching documents in financial aid module

We would like to be able to control whether the automated email goes out to students when we post a documents to the FA application page in the student view.  Currently, if there is an email address it sends a message even if the student has not been established as a user yet.  We'd like to be able to turn that off for cohorts and groups.  It would also be great to be able to upload docs from the Admin view.