I"ve never done dynamic hair in the hair room. I saw a tutorial that came with dynamic hair and it showed how to do it in the pose room.

Here is the site where I got the tutorial from. It comes in the readme for the hair.

http://www.adorana.de/

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi