Lightroom :: Zoom To A Fixed MP Setting

1)  Additional Zoomrates, such as 1:1.41 - to view an image at 1/2 of the side length.The best would be configurable zoom rates. That should be really easy to do.
 
2) Zoom to a fixed MP setting. I want to view all my images at 6MP, 12 MP or any other. This would be useful to check the details visible at a certain printsize.
 
3) Global switch to disable De-Noise rendering. This would speed up handling of D800 files a lot. De-Noise seems to take up most of the performance.
 
4) Possibility to view original, embedded JPEG Data in JPEG. (i.e. as reference)
 
5) Auto Histogramm:This function should move the left (black) and right (white) point of the curve to clip black and white at a minimum.
 
6) Sort and filter images by width and / or height in pixels
 
7) Sort and filter images by megapixel value
 
8) Autostack files with same name, such as xxx.NEF + xxx.JPEG. This is useful in case images were not combined at import.
 
9) When a folder is synchronized missing JPEGs should be removed from RAW+JPEG auto stacks.I see no way to reset this property, although it does not seem to disturb LR that the JPEG is gone.
 
10) Possibility to do a no-copy export. The purpose: copy the original file to the same name (which of course does nothing) and start an external application (such as RAW converter) with it.