// to all
final SingleElementActionGroup singleActionGroup =
new SingleElementActionGroup();
singleActionGroup.setContext(new ActionContext(_viewer
.getSelection()));
singleActionGroup.fillContextMenu(menuMgr1);
singleActionGroup.setContext(null);
// add "Show In" actions...
final RelatedViewActionGroup viewMenu = new RelatedViewActionGroup(getEditDomain());
context = new ActionContext(_viewer.getSelection());