How to create a unique item on dynamic pages?

I have my portfolio set into editor x and I’ve created dynamic pages. Some of my works require a unique asset on the page. Wherever I put something into the dynamic page it replicates into every page (that’s the point of dynamic pages) BUT I want to put an embedded youtube video into only one of them. How can I do that? Is there some config that I can hide the video on the other pages?

hello there
Recently there was a thread with almost a similar question, please check it:

Yes. Similar link here as well.