private void fillTypesOfEdges() {
		Vector<String> names = new Vector<String>();
		names.addAll(Global.getImplementations("nodes/edges")); // default + current project
		if(!names.contains(Configuration.getEdgeTypeShortName())) {
			names.add(Configuration.getEdgeTypeShortName());
		}
		typeOfEdges.removeAllItems();
		for(String s : names) {
			typeOfEdges.addItem(s);
		}

		typeOfEdges.setSelectedItem(Configuration.getEdgeTypeShortName());
	}