Board Thread:Support Requests - Getting Technical/@comment-24655611-20201003221542/@comment-9605025-20201004034626

It depends on the reason you are changing it. A change to the template itself will be reflected everywhere it is used; regardless of when it was added to a particular page. So if you want to add a new field to all of them, then this is exactly how you do it. However, if the idea is to have a similar template but for something else, then no. You would want to create a new template. For example, let's say you have a template for characters and not you want a similar template for vehicles. The fields would probably be very different so you would want a new template. That said, you could start the new template by copy-pasting the code for the character template.