User blog comment:JoePlay/Getting Help With Your Wiki’s Design/@comment-33988989-20171217214110/@comment-25024589-20171217215451

You have to edit on the wiki for at least a week in order to adopt it. I've seen users who file their requests a day or two in advance; however, waiting the full week would be a smart move in most cases.

In the future, though, questions like this are best asked in the forums (as opposed to on an unrelated blog post). :)