Unity UI How can you make images appear on (UI) buttons in a scroll box/scrollable list/scrollview?

Hello everyone,

I have a question about scroll boxes, buttons and images.
I have started a project and in my project I have made 2 scroll boxes,
I want that if I select 1 button of the first scroll box, in the second scroll box every button is getting covered by an image, but I also want that Unity reminds the images, so there appears the same images in the next screen/scene when I press the button in the second scroll box.

So for example: if I select a theme (button) in the first scroll box, I need to request the images to appear on the buttons of the second scroll box, but also if I select another theme (button) in the first scroll box, I need to request other images to appear on the buttons of the second scroll box. And if I press a button in the second scroll box, there needs to be the same image in that next screen/scene as you saw on the button in the second scroll box.

I need an easy way to make it work, so: to make one/two script(s).
I am just started with Unity, can someone help me please?