{
registry = new SequenceRegistry();
setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
final DefaultComboBoxModel groupModel = new DefaultComboBoxModel(registry.getSequenceGroups(Locale.getDefault()));
groupModel.addListDataListener(new SelectGroupAction());
sequenceGroupBox = new JComboBox();
sequenceGroupBox.setModel(groupModel);
sequenceModel = new KeyedComboBoxModel<Sequence, String>();
sequenceModel.addListDataListener(new SequenceSelectionHandler());