CMS vs Designer Mode: Background Video

Is there a way of adding a background video on each on my CMS collection pages without it changing the other ones automatically?

Or is there a way of having a background video based on an online link instead of uploading it?

Many thakns

Welcome to the community @jackancell!

You can add the background video via custom code, include a custom field in the collection for the video URL, then use dynamic embed elements to reference each collection item’s video source based on that field: