User roles can be customized, and one user can be, for example, Manager on one project and Developer on another. Role customization is reflected in privilege customization.
Scenario: we are going to create a new role, called Collaborator, that has the same permissions as Manager, but the only difference is that Collaborator can't create new issues.
Make sure you have administrator permissions in Redmine.
Navigate to Administration | Roles and Permissions. Once clicked, the Roles and Permissions initial form is loaded. From here, you can customize existing roles, add new ones, or take a look at Permissions report. To create a new role, we are going to copy the Manager role by clicking the Copy button. ...