In member settings you can define users who are members of the project. Project members can work on a project provided they have permissions as defined in project's permission scheme.
NOTE: Project manager, project admin, and project sponsor automatically become project members.
Click on Edit to open appropriate form for member management.
On the left is list with all users in the system and on the right are project's members. Drag'n'drop from one list to another to add or remove user from members list.
NOTE: If you remove user who is project manager, for example, from list of project members he will still keep permissions related to his project manager role.
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