I'm using the ArcGIS Pro SDK to modify the symbology for some of our layers. Everything is going good except one thing is evading me. I have a feature layer that utilizes unique values. I have managed to symbolize my layer to match the screenshot below. The last thing i need to to figure out is how I can group the symbols to be under one symbol instead of 7 different ones. I want to take the 'WIA with Rules' and group them into one symbol. Anyone have any ideas on how to do this?
I'm assuming it has something to do with the CIMUniqueValues FieldValues or with the CIMUniqueValueGroup, but i cant figure it out.