Inherit RadDiagramConnector and add it to a Shapes' Connectors collection. Copy / Pasting (or other serialization / deserialization action) the shape creates RadDiagramConnector, not the custom type of connector.

Diagram Shapes' property is bound to property from the ViewModel.
Case 1) Using GraphSource =>Shapes DataContext is automatically apllied. GraphSource is set to null or changed.
Or
Case 2) Not using Graphsource. Shape's DataContext is set manually (in code behind). Diagram.Clear() is invoked.

Result: Binding Expression erors in Output indicate missing properties - these are bound properties of the shapes.

ManipulationAdorner (including Rotation thumb, resizing thumbs) should not be zoomed along with the shape.

Currently the Bezier Connections Start,End Points and the two editing points are created in a common Canvas. There is no mechanism to hide the editing points but show the start and end point.
Note: Currently there's a way to hide editing or intermediate points - you'll need a style and a converter. We've added a new SDK example (HideBezierHandles) demonstrating this.

Implement support (or extensibility) for printing the whole diagram in a single page.

Ability to export a diagram to PDF.

Introducing Page size (A4, etc) concenpt and vertical and horizontal rulers