Suggestion

Add restriction to change environment in extreme mode

Improvement

When a cow is being milked in extreme milker, she is being blinded using custom environment settings. But she can get her vision back, choosing any other environment in her viewer (Ctrl-Shift-Y for midday, for example). I guess it's kind of bug, and the HUD should add @setenv=n restriction for whole time when cows are being extremely milked.