Can I have a unique image saved in each level/layout?

I have the levels of my game each saved in their own layout. Each layout has one unique image that goes with that level. I plan on having quite a lot of levels. I was hoping to somehow save that unique level image in the layout along with the rest of the level but not sure if that’s possible.

Any recommendations on best practice here? Thanks.

That's how I have it now - I create a sprite with that image in the layout. Also, I created a subfolder under "Object types" and keep those unique images in there.

I think I'm still trying to figure out the right question to ask for how Construct does things. Gonna ask a different question in a new post.