Creating Custom Policies in Horizon View Administrator

I have  deployed a VMware horizon suite 5.3. i have created dedicated linked clones. Windows 7 Professional acting as a parent VM. Users are on both View Client as well as Thin clients. Now i want to restrict users from taking screenshots, copy,paste activities from remote sessions of servers to their virtual desktops. How can i make this custom policy in View Agent or View Connection Server. Please help