I'd like a feature to easily move content blocks between sidecar slides. If I have a map on one slide, and another slide with several images and video, and want to make the background of the second slide have exactly the same map extent as the first, I would duplicate the map slide, then manually add the content blocks from the second slide. My ideal feature would be a button that says "copy background to another slide" or "copy content to another slide," then you just drag and drop your content to where you want it.
