sketching on a convergent body?

Is it possible to make sketches on a convergent body and then create features (subtractions, extrusions, etc) from those sketches?

Or is convergent modeling still limited to boolean operations?

Amy's Realize Shape tutorial is a good work around

https://community.plm.automation.siemens.com/t5/NX-Design-Knowledge-Base/Modify-Faceted-Bodies-with-NX-Realize-Shape-and-Convergent/ta-p/416228/jump-to/first-unread-message