Exclude a specific category from protection

Hi
I am looking for a way to exclude a specific category from protection cause i have allot they are All protected and it would be hard to input each ID, i have also Download Manager plugin i see that when i edit it’s categories there i can specify who can view it.
Wonder why s2Member did not implement such but only for individual posts.
Do you know some code to exclude protection of a specific category so s2member plugin does not protect it?
Thank you for any help.