IMDb credit category for Voice Directors/ Dialogue Directors on animated productions

Why does IMDb have no appropriate credit category for Voice Director or Dialogue Directors on animated productions? Given the significance of directing and shaping the performance of all actors in the cast, and in feature animation then overseeing the editing of the performances of every actor and word spoken in the entire film, it seems crazy that there is no form of Directing category that properly recognizes the significance of the role of Voice/Dialogue Directors in animated productions. Particularly in western animation where they direct and edit the dialogue performances first and then give those edited performances to the animators who then animate to match the dialogue performances. IMDb has Director related categories for roles like Second Unit directors and Assitant Directors because their contributions to the film are, indeed, significant but the significance and scope of the creative contribution of voice directors/dialogue directors in animated productions is far greater and should be allowed to be properly recognized on IMDb as such, instead of just listing them as Additional Crew or possibly as part of Sound Department.  They should be recognized in an appropriate Director related category way up toward the top of the filmmakers credits. Voice Directors/Dialogue Directors should be listed right beside the Casting directors on animated productions.  Casting Directors and Voice Directors (or Dialogue Directors) are almost always (or at least extremely commonly) listed together in the screen credits of animated productions so it only makes sense that they should be listed together on IMDb as well.  So, what can be done to have an IMDb credit category for Voice Directors added, ideally alongside Casting Directors, in the IMDb credits for animated productions?