To give a user access to a project, navigate to the project concerned.  
> Go to the 'Actions' drop down and select 'Settings'  
> Click on the 'User Management' section  
> Scroll down to the 'Add an Editor' section  
> Select  the user you want to give access to from the drop down menu  
> Click the red 'Allow Access' button.
Any users you select at the project level will be able to edit all mailings  and versions in this project.  

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