How Important Is Optional Or Supplementary Application Material?
Optional or supplementary application material is pretty self-explanatory in the sense that it is, well, optional or supplemental. It is there to give you the option to supplement the information already present in your application with other details about yourself that you think might be pertinent to an admission office's decision. If you haven't found a place in your application to share an interest, pursuit or accomplishment, this is your chance to do so. It never hurts to provide admission officers with additional information on your strengths and skills.