Hello,
I have this point feature class:

I am trying to symbolize the points in this way:
Color - unique values from the color_vary field.
Size - size from the num_count field.
I did it like this:


It looks ok:

However, in arcmap I am able to classify the sizes:


How can i do it in ArcGIS Pro?
In the size range scale i cannot find a way to add breaks and classes or to change the classification method.
I attached the feature class so you can try it yourselves.
Thanks,
Aviv