In the same way that we can add a delay, small one, for diferent displays, would be amazing to add delays (seconds), to the slices.
Means that if you have a mapping with different slices with different delays you would be able to create animations easily with a single loop video.
If you map a robot face for example, video would start on the eyes, later on lips, later on eyebrows... Would be easy to bring dinamism to the mapping.