I would like to see a dialog box similar to Add Values Dialog in ArcMap.
In ArcMap when you click on the add values option to add values to your symbology you'd be presented with a box where you could add all the values or only add the new/different values. This dialog allowed you to select from the new values which ones you'd like to add to the symbology. I'd like to have this box back again. Right now the Add Values box in Pro add ALL values and not just the new ones.
I'm inserting a picture of the dialog box I am looking for in Pro (or at least similar functionality.