We would like to have this available too. The documentation does not state access level has to be edit in order to add a note to narrate mode. We have users where content needs to be locked down but would like to add notes to visualization in narrate mode without having them change the content.

Time was one attribute, there are others as well and not all could be joined otherwise the data could get skewed.

We have a need for this feature as well. This would be a great addition so the users can keep track of their datasets in a logical structure rather than in a single column format.

We also have this need to have a template or custom landing page based on role.

We also have a business need for the same type of stacked bar /line graph. Can we get an ETA of when this will be developed?