Board Thread:Support Requests - Getting Technical/@comment-36310878-20190522074608/@comment-9605025-20190522210702

It depends on the specifics. You can add it for yourself on any or all wikis; but others won't see it. An admin (or you, if you are an admin) can add it to their wiki for you. Others will see it but it will be on that wiki only. There is no way to add it for all wikis for all users to see.