helper.add( new AcceptWhenOverFirstVertexBehaviour());
helper.stopOrderedList();
helper.startOrderedList(true);
// behaviours that select the geometry and hole
helper.add(new SelectFeatureBehaviour(new Class[]{Polygon.class, MultiPolygon.class}, BBOX.class));
helper.add( new StartHoleCuttingBehaviour());
helper.stopOrderedList();
helper.stopMutualExclusiveList();
helper.add( new SetSnapSizeBehaviour());
helper.add( new AcceptOnDoubleClickBehaviour() );