Please read these knowledge base articles:
At this point, you’ve read the following helpful article:
https://www.loom.com/share/44e61ec89c8b4a4c8ba6382c263c5ce1?sid=21bd153b-8b0c-4651-9558-478c742923e8
When you have finished this training, you should have a new template in your library with an alternative video source. It should be overridable and the overrides should be organized in the appropriate folder.
https://www.loom.com/share/1d31857d2eb04100b8c28d152084ec06?sid=fda69c98-0186-4bd6-b5df-5fe8645623ef