Lightroom has a feature called Masking under Sharpening in the Detail panel.
It's purpose is to protect flat areas from sharpening, and only sharpen details.
Set to zero, everything will receive sharpening, set to 100, only the most defined edges will be sharpened.
If you hold down Alt while dragging the slider, the image turns to black & white - white areas will be sharpened and black areas protected. You can use it in Fit view, but for critical work view the image at 1:1 while dragging the slider.
(sharpening and noise reduction should always be applied and evaluated at 1:1 view)
Thank you for taking time to answer my question
Thank you for taking time to give an answer to my question.
Sorry but I guess I need to explain further
When you turn the sharp mask on in Capture One
It highlights all the areas of the image that are in sharp focus. This lets you know the critical areas of sharpness in your image. The highlights are in bright green so easy to see. If you are shooting tethered you know if got the shot in focus right away no messing with it.
When reviewing multiple images you can choose very fast which ones to work with. Based on critical sharp areas
So I am not looking to sharpen a picture just a mask that shows areas of sharpness in a picture.
There is no such feature in Lightroom.
Thanks hopefully they will add.