Board Thread:JS and CSS Support/@comment-30558056-20190608061857

I am completely new to adding Custom JavaScripts to wikis. Can someone please help me install the following two Javascipts for site wide use on Xbox Wiki, these are RailWAM and GlobalEditcount. I have tried installing these myself on the MediaWiki:Common.js page, they have been approved but still do not work, I don't think I installed it properly. All I ask is for someone to help me install these, it would be much appreciated. 