How to make hypeDropzone active in file plugin !

Hi, 

I'm attempting to test hypeDropzone in "files plugins," but I'm stumped as to "Where to add these codes?" #Elgg3

 

To add a drag&drop input to your form, add the following:

echo elgg_view('input/dropzone', array(
      'name' => 'upload_guids',
      'accept' => "image/*",
      'max' => 25,
      'multiple' => true,
      'container_guid' => $container_guid, // optional file container
      'subtype' => $subtype, // subtype of the file entities to be created
      // see the view for more options
));