Board Thread:Support Requests - Getting Technical/@comment-30247227-20150824064056/@comment-4731443-20150824065515

Hi Adian. Those words must be changed on the template page rather than the article you use it in. In your case, it would be at Template:Infobox, however I recommend making a copy of that template and renaming it for your specific use case. For example, you could create Template:Infobox_city and customize it as you wish.

You should be able to locate those headings easily, but here is an example: |- ! First (this is what appears in the infobox)

You will notice that fourth, fifth and sixth have some additional code around them. Those have an if clause that hides the values if they are not specified when you call the template on an article. That's why they disappeared when you tried to change their names; what you did was in fact try to pass parameters that didn't exist to the template, and the parameters for fourth, fifth and sixth were therefore missing and hidden from view.

Here's some recommended reading before you start modifying templates:
 * Help:Templates
 * Help:Template parameters
 * Help:Infobox
 * Help:PortableInfoboxes (these are a new kind of infobox that may be easier to use for you)