Board Thread:Support Requests - Getting Technical/@comment-45252479-20201010042808

I have two questions: Firstly, on a wiki I am on, there's an odd category called 'Pages using duplicate arguments in template calls. Is there a way I can remove it from the pages?

Secondly, with tabbers, is there a way to make the tabber toggler thing to be centered, but to keep the content inside the tabbers not centered, sitewide? (the wiki I want to do this on is a UCP wiki) 