Help with images

HI All

Is there a way we can start an image off as hidden and change it to visible using an advanced action?

I have a image of a process flow and am branching to watch short videos on each step, however i would like to visually show progress on the slide with the process flow and was wondering if i could make a tick appear next to a step once they have viewed the video and returned to the slide.

I am trying to have a single base slide to branch off to the videos rather than multiple slides.

Hope that makes sense 🙂

Leanne