How do I tag users in a comment?

Using @mentions to notify users

Adding User Mentions

Simply type the @ symbol in a comment for a list of that project's users to appear.  You can either finish typing their name, or select them from the list.

A user must be a member of the project that contains the review to be mentioned in a comment.

How Users Are Notified

When a user is mentioned in a comment, they'll receive an email notification:

Mention_Notification

Clicking the Open Review link will load the review with the specific item and on the exact frame where they were mentioned.  If the user was tagged in a general (non frame-specific) comment, clicking the link will take them to the first frame of the item with the comment.