VTK Designer 1.x had a category of modules called “Data File Loaders” or DFL as I used to call it. DFLs could basically load data files of different formats. With DFL you never had to construct pipelines for loading data files; you could just load the file at the click of a button and the pipeline would be constructed for you.
A new component for VTK Designer 2 is now under-construction that will help you do just that. You can just select any file (whose format is supported by the DFL component in VTKD2) and load it. The visualization network required to load and render the data file is constructed for you. Whats more; you can further edit the pipeline to suit your own needs. Check out the video below: