Q. What is the quickest way to add a "Friend" as a Project collaborator?

Answer

1. Click on "Add as collaborator" next to the name on your "Friend list" that you want to add to the project as a Project collaborator.
2. In the popup window, uncheck the "Send notification" box, click ü, and then "x" to close the window.   
3. Refresh the browser (go to "View" and click "Refresh" or "Reload").  You will now see the name added to the list of Project collaborators. 

You can see that adding a user to your "Friend list" is a smart way to expedite adding her/him to a Project in the future.  Click here to find out how.