You can edit most security group information including security permissions. The security group name cannot be changed.
The Security Groups window opens.
The Edit Security Group dialog box opens.
Server security is the default security and affects all repositories in the mainline branch. For more information see Setting server security.
Repository security lets you override server security for all branches in the selected repository. For more information see Configuring repository security.
Branch security lets you override server security for the branch. This tab is hidden unless a branch uses its own security. For more information see Configuring branch security.