Board Thread:Support Requests - Designing Your Wikia/@comment-24576772-20140225012905/@comment-3060206-20140225022502

You'll need to edit MediaWiki pages/have an admin on the wiki edit them for you if you're not one.

For "chat entry", it sounds like you want to edit the button that, by default, says "Join the Chat". For this, edit/create this page.