link skill search

I have tons of characters sometime when I going through them I want to find my most valuable characters I have.Then one day when I was about to do a dokkan mission I noticed I didnt have the passive skill or link skills characters to help me on mission so I thought.can you plz add the ability to look up characters by link skill under character list please :).

IMJUSTASALAD about DRAGON BALL Z DOKKAN BATTLE, v3.0.1