I want this feature also, and I know this is two plus year later, but I created a Python script that does what you want. ImageRotator.py: https://github.com/DataJuggler/PythonScripts/blob/main/ImageRotator.py The way I did was you select a folder, and put all the images in a folder, and it rotates which prop is visible on the timeline. You could modify the script to set it use specific times instead of increments like I did it.