Could for instance Slaanesh gain more than one dial advancment token
if he places four corrupion tokens in a region with two noble tokens.
or one hero and one noble token?
Or is the idea to get dial advancment by causing havok in different regions.
I am reading it as even if you place 6 corruption tokens in a region.
You never get more than one dial advancement token in a region.
Just to be sure