Select the user from the table on the User Management page and click the Map Project button.

Users can be mapped to projects through this UI: Choose the project to map from the drop-down list. You can also use the Search textbox to find similar project names. Select the project from the list and assign the appropriate user role by clicking the Project Admin or Task Admin checkboxes. To undo the mapping, click the Remove button. Finally, click the Close button to save the changes.