Can I copy paste Selected Objects from One Diagram across another Diagram?

I have two Diagrams. one diagram contains some diagram, i need to copy paste same diagram into another Diagram. Is it possible or not?. i am able to copy paste within one diagram. but from One Diagram to another diagram i am not able to Copy Pasting. please help me?

That can work if the two Models are of the same type and their data are compatible with each other.

See for example

Also if you try selecting a node in the Palette of the Flow Chart sample, or any other sample using a Palette, you can control-C copy it and control-V paste it in the main Diagram.

For those samples that support doing a pasteSelection command in a context menu, the copied node will be positioned there at the context click point.