Project administrators create roles, which they then assign to project members to define what those project members can do in the project.
Create a role
A role defines the applications that project members with that role can use, and the specific things project members can do in each application.
Change a role
If users need to do things that are not allowed by a role you have assigned to them, you may need to change the permissions associated with that role.
Give roles to a project member
A project member can have any number of roles. As project administrator, you must assign each project member's roles.