tagMerger = new TagMerger();
tagMerger.setName("panel.tagmerger");
tagMerger.getModel().addPropertyChangeListener(this);
tabbedPane.add(tr("Tags"), tagMerger);
nodeListMerger = new NodeListMerger();
nodeListMerger.setName("panel.nodelistmerger");
nodeListMerger.getModel().addPropertyChangeListener(this);
tabbedPane.add(tr("Nodes"), nodeListMerger);
relationMemberMerger = new RelationMemberMerger();