Board Thread:Support Requests - Getting Technical/@comment-39378608-20190526145122

I'm kinda stuck after digging through google in regards to making the Character Infoboxes support captions. Finally, I've found what I wanted here: https://fireemblemwiki.org/wiki/nino.

In short, what my not so good coding brain is trying to achieve is that whenever I tap on one of the tabs I can have a short customizable caption attached to and below the image as on that wiki.

I tried to dissect the code by creating the exact same templates (Character Infobox, Tab, Tab/Tab, Tab/Content) and even though I could produce the Infobox, the tab switch functionality from the Tab Template is just plain text (even though here https://fireemblemwiki.org/wiki/Template:Tab it tabs back and forth).

I know that the versions of MediaWiki most likely differ and they may have different plug-ins as well, so, my question is more of: whether that functionality can be done in Fandom Wikis? If possible to do, can someone pinpoint me to a manual of sorts or maybe a simple example so I could understand what / how / why?  