Collect user feedback by enabling the comment mode on a process. Once the comments have been collected, it is possible to mark comments as completed to keep track of the status.

Once the comments are enabled, any user with access to the process can add a comment. 

To keep track of actions / suggestions of the comment, it is possible to mark a comment as completed.

Only editor with "can edit" access right on the process can mark (or unmark) a comment as completed.