P: (AI) ​​NR need slider for a separate additional adjustment of the noise in shadows.

Pleae add to the AI ​​NR one slider for a separate additional adjustment of the noise in shadows.

I shoot on cheap cameras/smartphone, and this is too much the difference between the noise in the shadows and other areas.
If I increase the main slider above to clean the shadows, then the middle tones and lights become "plastic" that I do not want to be.... I want to separately set the overall level, for example, main - 33 and shadows - 70. Now this is possible only by creating layers in Photoshop ... and this does not help in maintaining time ...

②　Also, It would be nice to have a Chekbox for shadows slider: (not to redraw the details) so that only noise cleaning works. This is necessary for night shots with noisy shadows when AI is trying to draw/invent too many fake lines in dark places. This effect spoils everything, and makes it worse than the original.

this is must have!

best regards