In some tutorial videos where they composite the scene using various images, effects, shading etc.(in separate layers). And at the end, they would try to apply Camera Raw Filter
. But they would do it to a merged version, means all layers would be merged into a smart object or a flattened image.
How can I merge all my layers like that? Here's a screenshot of what am talking about: https://prnt.sc/w3g7xf
Any ideas? Thanks.