Thread:Sannse/@comment-31208684-20180313201031/@comment-25024589-20180313214017

Achievements have been deprecated since April 11, 2017; it is unlikely new additions to the feature will be added at this time.

In any case, though, you may send in a message to Staff about your proposal.

Edit: There is also an option in Special:AchievementsCustomize to add "Edit tracks" for editing pages containing specific categories, though I'm unsure if that's what you need.