Configuration Specific Weldment Cutlist Custom Property

Since SolidWorks 2019, we have ability to define a configuration specific weldment cutlist custom property :

How to deal with this feature from SolidWorks API ?

- How to know if a weldment cutlist custom property is configuration specific ?

- How to add/set/del a configuration specific weldment cutlist custom property ?

SolidworksApi/macros