I would like to use Python to synchronize a custom qMRMLNodeComboBox with, for example, the Foreground combo box of the Green slice view. Same thing with a slider for the opacity. So when I modify the node in my combo box, the green slice is modified and vice versa. I tried creating a qMRMLSliceControllerWidget as in the View Controllers module, but most methods seem not to be wrapped in Python. Do you have any ideas?