View a reviewer's requested changes

In the requirements detail window, click on the  icon on the right side vertical menu. For a reviewer who submitted a change request, under their name will be a Requested Changes button. Click to show the requested change, which is also visible in the Reviewer comments thread. To reply, you may click View this comment thread directly below the change request details or continue the dialog in the review chat box . 

Users will need to have project permissions to view the requirement to perform this action. Depending on the settings of the user's project permissions, they may be able to view all the project requirements or just a subset of them. Users added to a specific requirement as a contributor, reviewer or co-owner will be able to view it.