Board Thread:Script Suggestions/@comment-25523075-20160330160035/@comment-11733175-20160331102636

UserRights is for assigning groups with meaningful tools. MYEXAMPLEUSERRIGHT has no meaning unless it's utilised by the software server-side, typically through an extension. It makes no sense to add a useless right to that special page.

Ignoring that, loading JS on that particular special page creates a security weakness so what you're asking to do is technically infeasible and has been prevented by the software. I'd encourage you to look at ProfileTags to achieve the same end effect as you're envisioning.