ArcGIS Pro does not support graphics in maps (especially text graphics) in V1.0.
That's too bad because it's not possible to write / draw a note to the map quickly!
Labels do not meet all requirements - it's often necessary to add a simple text in the map.
And to convert labels to graphics and edit / move them.
Or to paint around freely without creating a feature class first, customize the feature templates and so on.
Please provide graphics and text elements for maps, too! (same commands as available for layouts)