I added image stacking to SBG last night after drinking a cup of coffee from our new coffee maker - at 9PM - forgetting it was not decaf. So after coding for an our I was able to get SBG to do image stacking. This is a raw sample of the results. Compare to Sean's mix of the Biden Rally vimeo.com/2156295 for comparison - note the difference in look between the exodus portion. This same look can be achieved via a NLE, for sure, but SBG can process the source frames, so minimal loss of image data.