How to add a strip in the Post Page linked with singular cover image post?

I’m trying to create a site based on blog posts, all with Wix editor. I would like to be able to customize the Post Page with a full-page strip that shows its cover image for each individual post.

I tried to do it via the Content Manager, where I created a dataset connected to Posts and connecting the strip to the Cover Image, but unfortunately for different posts it always shows me the same Cover Image, i.e. the one associated with the last post created.

I’m new to Content Manager, so I don’t really know where to start.

There is a good soul who can help me from scratch?

You could use a little bit of code and use the coverImage from the blog. (Would save needing another collection)

It would probably look something like this:

$w.onReady(function () {
        .then((post) => {
			$w("#strip").background.src = post.coverImage ? post.coverImage : ""
        .catch((error) => {