where is the equivalent of Auto when having a masked area ?

Hi,

Auto sometimes works, sorts out exposure and colour balance etc.

If I draw a mask for the area I want auto to work on, I then dont see an auto expsure button to use !

Its not doing anything at all in my image of a wall grasses and a bright sky so I want to apply auto to all but that sky.

If I were in photoshop I would reach for levels auto, also a good one to do. or adjustments auto colour.

where are any of the autos for when we have masked an area for applying changes to ?

I can mess about for ages sliding sliders to and fro, trying to create the average scene from what is one but is incorrectly exposed or has a colour issue etc, grasses and bushes auto should understand.

Merlin3