Sticky notes feature for collaboration

It would be great if collaborators could add ‘sticky notes’ in the app editor with comments, but they wouldn’t be visible in test/player. Possibly format them to start with the users name or initials.

Maybe user feedbacks and features backlog in each app can be interesting to drive next version of an application with kind of release note for user. Each application is like a « Product » in a plant and need to be manage as a product : user feedback, features, US backlog, link to next version, automatic release note, highlight automatically change in application during the first new run for a user, …

What about if Tulip could create notifications for when a user adds a comment to a step?