Board Thread:Support Requests - Getting Technical/@comment-35455665-20180422115037

So, I'd like to add the infobox tab thing to characters on the bfdi wiki. They have tabs already, and they look like this (picture on left)

But what I want to figure out how to add, is tabs with folders and stuff. Something like this (picture on right) You see what I'm saying? How do you add folders like that? I haven't really seen someone talk about a similar issue, nor can i be able to ask the question properly as a title. I appreciate any advice. Thanks! 