The ability to annotate a visualization, for example a chart or graph, would make both the dashboard and reports experience more robust.
Annotations are just as important as the charts. Using Power BI for data storytelling without annotations is very limited currently. I would like to annotate charts and data points. This function should support relative positioning (e.g. relative to selected data point or visual element like an axis or shape). I would like to use static text and dax measures as well within one annotation. Data point annotation would be useful to highlight what is important and to provide context. I would use chart annotations for onboarding by explaining what the chart shows. I would use bookmarks to let the user hide the annotations when not needed. It could be a report page tooltip that is always visible for a given data point (not just when hovered).
