Board Thread:Support Requests - Getting Technical/@comment-4903640-20150124204417/@comment-4189499-20150124212024

You can use a template for that. By changing the template, you can change content across multiple pages on a wiki. Start a template at a page called "Template:Whatever" where whatever can be, well, whatever. Then type in your content. Call the template using, and by that I mean write  on the page wherever you want the contents of "Template:Whatever" to go.