Please ask the MoM of your site for it, emojis can be added on every site individually (:

Please talk to the MoM of your site about this idea, since graduate classes are managed indivudally by the MoMs and are different on each site (:

Dear Kimmie, 

we completely understand your request. Since the grading system varies a bit from site to site (in regards of what deserves outstanding, what deserves EE), please turn to the MoM and HM of your site with this request.