The section Using the Server ACL Editor Intro in the Using
the Server ACL Editor chapter explains how to configure server-level
user permissions; the section Overview of the Project ACL Editor in the Using
the Project ACL Editor chapter explains how to configure project-level
permissions.
You can get from the Server ACL Editor to the Project ACL Editor and
back using the controls at the top of either ACL Editor window:
ACLs can specify permissions for users and groups. Groups
can be defined at the server level using the Traction Groups, or at the project level using the Project Setup - Members, which are also accessible from one another in the same
way that the Server ACL Editor and Project ACL Editor are.