UiThreadSupplier.call(new Supplier<Void>() {
@Override
public Void get() {
for (Transformation tx : transformationsToOpen) {
Editor page = pageDisplayer.openPage(tx);
if (page instanceof TransformationPage) {
// The page will end up as dirty once it has opened since its mapping
// structures were created for the first time. --> Save the page once
// it has finished loading.
addSaveJob((TransformationPage) page);