I think it'd be worthwhile to implement custom emailing for instructor preference forms. If I'm a department scheduler, it seems like it'd be convenient to be able to send out preference forms to my entire department and view their responses without having to leave the platform. As of now, I'd have to copy a generated url link and then email the faculty manually. We have custom email templates for requests and events, so it seems like something worth doing for preference forms, too. Note that the utility of this implementation depends on department instructor data being up to date, which it should (necessarily) be if department schedulers are assigning faculty to every course.