How to tie widgets (vtkAbstractWidget) together?

I need to sync widgets’ actions that are in multiple renderwindows together. Upon first inspection, vtkWidgetSet seemed to be the right choice for this but as I understand now, the implementation hasn’t been touched in years and basically only barely works for a single widget type (vtkParallelopipedWidget) and it completely doesn’t work in Python. Related GitLab issue

Any advice on doing this in python? I thought about making a custom callback similar to this example which ties 3 instance of vtkResliceCursorWidget and vtkImagePlaneWidget together and generalize it for infinite number of widgets and other types of vtkAbstractWidget but I’m not entirely sure!

Thanks in advance.

Hi somso,
Have you managed any progress on this issue?