Original: If a wiki has a passing need for an edit to be oversighted , for instance , a steward can add themselves to the ` oversight ' user group on that wiki , perform the necessary oversight activity using Special : HideRevision , and then remove themselves from the ` oversight ' group using their steward rights .
Simplified: If a developer needs access to a specific permission on wikipedia , they can assign the permission to the ` developer ' group , then add themselves to the group using steward rights .