I have understood the instructions and made this work. But this is painfully slow working. I shoot in RAW + JPEG and the JPEGs have the on-camera lens correction, etc. applied where as the RAWs obviously don't. They are effectively two different images but Photos decides they are the same and hides one. Under iPhoto I could quickly toggle between JPEG and raw to see what effect the on-camera processing and corrections had. Now I first have to "duplicate" what was already two photos. That makes no sense. Then I will have four photos just so I can compare the uncorrected raw with a processed JPEG.
Does anyone from Apple read these threads. I just don't understand why the software would make it so complicated to view all the photos we upload into it. There must be a way for this to work without such a workaround?