Trigger images with buttons - slider effect

Hi friends! I asked in the FB group and got one answer, but I still can’t get what I want. The animation should be very visually simple. Each icon has its own corresponding image. The first image must be visible on scroll and when any other icon is clicked, it should activate its corresponding image and so on in a circle. So far I have managed something, but I heave to click again on the icon to make the image disappear, in order to activate the other slide.

This is a website and the slide is in the second section.

And here is a json files from the slide section and BF timeline.

If anyone is willing to help I would be eternally grateful! Thanks!