examples/org.eclipse.epsilon.examples.modelmodification/AddLeaves.eol

var i := 0;
for (leaf in Tree.all.select(t|t.children.isEmpty())) {
	var child : new Tree;
	i := i+1;
	child.label := 'Added' + i;
	leaf.children.add(child);
}

Model.store(Model.modelFile + 'copy.model');