[vtkusers] Actor2D in ImageViewer - 2 questions

[Sven Prevrhal]

Hi,
when I add a vtkActor2D to an vtkImageViewer->Imager,
it is displayed independent of vtkImageViewer->SetZSlice. I guess I
understand why, but how can specify that it is displayed only at the slice
whose z matches the data of the 2D actor?

My 2nd question would be, how can I effectively pick this Actor in
vtkImageViewer?


Thanks,
Sven