@FunThomas

You're right. Thanks to Steve's script, it works in principle, but every time slide 2 is shown, it puts a new image on top of it. So after 10 runs, I have 10 images on top of each other in the slide.

I'm just looking for a way to rename the shape to "LiveImage". I've selected it, go to "Image Format" in the menu, then to "Selection Area" and on the right I see "Graphic 69". I'm renaming this to "LiveImage". The next time I start it, the image with the name "LiveImage" is deleted, but a new image is inserted with the name "Graphic 70" and above it "Graphic 71" and so on.

So in the end I still have lots of images on top of each other.

I only want to have one image in the slide. The current one at that.