This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
You can assign groups to certain patterns like the administrators are assigned to admin/* (the admin module). I don't know how else to explain it without just doing it for you and what's the fun in that?