Cancel 'only' test
Add additional reviewer in the test
Additional reviewers business model
Mark topUser as sender
Insert add button just before the sender
Insert add button just before the sender
Work on the copy of automaticReviewers
Check the state of all possible reviewers to determine add button visibility
Bring back add button when all possible reviewers gain more values
Bind close button with username
Expose additional reviewers
Expose additional reviewers into an input element
Get sender selection from the originator