User blog comment:Ducksoup/The Future of Infoboxes on Wikia/@comment-388207-20150825210513/@comment-26009167-20150826130033

Hey Ducksoup, me thinks navboxes could work under the same (or at least similar) code -- all it really needs is a width change and the button to hide/show.

That's just a guess though. I could take a crack at it if you want me to try to make a navbox with the PortableInfoboxes syntax, though.