chooser = new LoadSaveFileChooser("Select Batch Queue File");
chooser.addChoosableFileFilter(new FileNameExtensionFilter("XML files",
XML_EXTENSION));
// The steps list.
currentStepsList = new DragOrderedJList();
currentStepsList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// Methods combo box.
methodsCombo = new JComboBox();