if (selected.size() == 0) {
m.add(new AddPrimitiveAction2(rootNode, BarrelNode.class));
m.add(new AddPrimitiveAction2(rootNode, BoxNode.class));
if (selected.size() == 0) {
m.add(new AddPrimitiveAction2(rootNode, BarrelNode.class));
m.add(new AddPrimitiveAction2(rootNode, BoxNode.class));