Long time listener; first time caller. 
This should be straight-forward. I’m getting to grips with the DPI curve in DPI Scaling and I can’t see a way of selecting a key and deleting it. Pressing delete on the keyboard doesn’t work, and unlike creating keys there aren’t any viable right click context menu options. I’ve even tried to drag them off the graph.
Currently, the only option seems to be undo. Can someone please help?