I had an ArcGIS Pro user who would like to see a little more guidance when adding dynamic text.
1. She was looking/couldn't find relative scale text. It's not very clear that Dynamic Text should be where to look, maybe just a name change?
2. When you add a North Arrow, Scale Bar, Legend, etc, you get a nice user interface that enables you to define parameters. My user was frustrated that the same thing didn't exist for Dynamic Text, in this case relative scale text. I imagine the Element window could read the parameters referred to in the text and search through the layout for acceptable options and provide them as a drop down.