Wizard - Evoker - Empowered Evocation - Over Applied

I am playing a Wizard - Evoker and i am finding that when i trigger something like magic missle at level 5.  It is adding the additional damage on every missle and not just the first missle.  Is there a better way other than turning it off and just adding it manually?

Hi Douglas C.,  This is the Suggestion Forum, it is not intended to ask troubleshooting questions. You may want to post this in the Specific Use Questions & Macros forum or the Character Sheet forum.  Additionally, which character sheet is this for? There are over 1000 character sheets across 300+ game systems. D&D 5e alone has over a dozen character sheets on Roll20.