In the Sculpt Layers window, select the layer with sculpting you want to modify.
Edit the layer’s Strength value or click the slider icon and drag the Strength slider, keeping in mind the following:
Increase the Strength setting to amplify the sculpting on the selected layer.
Decrease the Strength value to reduce the sculpting on the selected layer.
Set the Strength value to a negative number to invert the sculpting on the selected layer.
NoteBy default, the Strength setting has a range between 0 and 100. You can enter positive or negative values outside this range to amplify or invert
the information stored on the layer.
and drag the Strength slider, keeping in mind the following: 
