VTK - only show if there are comments or commentsEnabled=true (tested all three scenarioes and checked that markup is valid)
VTK - only show if there are comments or commentsEnabled=true (tested all three scenarioes and checked that markup is valid)

vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk