Board Thread:Support Requests - Getting Technical/@comment-5785681-20190322090649/@comment-168424-20190325173522

As Flanqer says, you need to edit Template:Character Navigation, not the character page.

And it is listed if you click the link "Show list of used templates" (it won't show up directly in the side rail)... here is what I see:
 * Template:Character Infobox (view source) (protected)
 * Template:Character Navigation (view source) (protected)