Stacking help

I recently imported a whole bunch of images (RAW and JPEG) processed by an another person. When i imported them into LR, they appear as two images. Although LR identified and placed the JPEG derivatives right next to its RAW image - they are not stacked. I would have loved to have these stacked, with the JPEG (post processed) to be on the top. Is this possible? Can someone help me here?



Thanks!
Stacking help
Not possible yet, though autostack set at 1 second might do the job.

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