Need Help linking buttons to an Image list

So I'm doing a school project and I'm trying to make different images from a list display after clicking the buttons that correspond to their index. The problem is that I can't get the Image to change using the list, I can only change an Image manually.

You could send a screenshot­čśĆ

Try it this way, create a list with your buttons and one with your images. Then when any button click set image to select from image list according to the index of button in button's list