Board Thread:Support Requests - Getting Technical/@comment-29437579-20160805155146/@comment-26402117-20160807182316

Saftzie wrote: Ask Wikia staff to install the Variables extension on your wiki.

In Template:Infobox, create a variable with. I named it, but you can call it anything you want. (Aside: you should pick more descriptive names for your parameters.)

In Template:Navbox, remove  in the top nav. In each sub-nav, replace  with , where   is the (all lowercase) class for which you want that sub-nav not collapsed.

For example, if you invoke Template:Infobox with, then in Template:Navbox in the Pistols sub-nav, you would use.

You can remove  from Template:Infobox if you think you really don't want/need it. It's there in case your editors don't standardize on any particular casing for the class. Adjust the  strings in Template:Navbox correspondingly.

Do you need  for it to work, or will it automatically stay expanded without  ?

Have an upvote for answering both OP's questions :D