The Membership page lists all project members including their username, full name and project role. If this project has Issue Tracker for the tracking component you may see a View Issues link next to the project member's name. This link displays a listing of all project issues assigned to that project member. Each project is configured differently; depending on a particular project's configuration, you can:
Requests for new roles must be approved at the discretion of the Project Owner. The nature of your participation in any project is predicated upon these roles. If you have any questions about a role assignment, you should contact the Project Owner directly. Your ability to conduct various project activities is governed by certain permissions associated with different roles. To learn about the meaning of any role, please see project roles.