Update diagram on namespace changes

[flitjens]

How do I handle situation where I imported my C# code via Develop->Source Code-> Files and created a diagram from the generated classed and later on one of the classes namespace is changed. When I import my code again I see the new class is generated but I want to update my diagram to use the new class in stead of the old without replacing one with the other. I did see some comments where they suggest using local path but that doesn't help in my case. I just want my element in a diagram to reference the same class but now in the new namespace.

Is there a way to update only the reference to the code and element from an element in the diagram?

Kind regards,
Frank Litjens