Select and mark photos that are part of a burst

I often take bursts of photos, such as in sports photography, special family events (1-year-old eating first cake, bouquet toss, first bike ride, etc), with up to 10 photos per second. I do time lapse intervals as well. Could we get a way to automatically group photos that are in one directory and happen to be taken within a specified interval from others? I saw this feature in Aperture when it still existed, and used it frequently. I'd like to be able to set the interval between photos for anywhere from 2 seconds down to .05 seconds. It'd also be handy to be able to quickly scroll through thumbnails in the burst and easily tag the best one in the burst (thumbnails, since they are much smaller, might load more quickly than a 25MB RAW file). I can manually scroll through all of the photos in a directory and tag/rate them one by one, but the automatic grouping of the photos would be VERY handy, and the special attribute of "best in a batch" would also be very nice..

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