Where do I change the monster power? [closed]

In the new patch for diablo 3 you can supposedly change the monster power at the quest screen, but I am unable to find where you can do that. Does anyone know where to do this?


Solution 1:

You have to enable this first in the setting screen under gameplay settings. Then you get to choose the monster power when you start a new game.

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Image taken from the official blog post on the feature.