I can't get the "To add a node element using drag-and-drop technique" to work.
Its documented herehttp://www.jetbrains.com/pycharm/webhelp/adding-node-elements-to-diagram.html
So if my diagram is open, I can hit SPACE and type in a class, and that works. But I can't drag in files from the project view into the diagram?
What am I supposed to be able to drag and drop into the diagram. I can't drag in classes from the structure view because structure view turns into a diagram overview map when viewing a diagram.