svoid stefansOS_addDynamicModuleDialog() {
  selectDynModuleID(voidfunc(fS snippetID) {
    temp tempBusyAnimation("Loading Module");
    
    final Class c = hotwireModule(snippetID);
    L<S> names = (L) callOpt(c, 'myInnerClasses);
    if (names == null)
      names = map getClassDeclarationName(innerClassesOfMain(getServerTranspiledWithoutLibs(snippetID)));
      
    // only show the usable ones
    try {
      names = shortClassNames(nonAbstractClassesInRealmImplementing(c, _getClass(c, "main$DynModule"), names));
    } catch print e {
      names = null;
    }
    
    if (empty(names))
      stefansOS_showNewDynamicModule(snippetID, null, c);
    else if (l(names) == 1)
      stefansOS_showNewDynamicModule(snippetID, "main$" + first(names), c);
    else
      selectFromList("Class to use", concatLists(ll("None"), names), voidfunc(S className) {
      stefansOS_showNewDynamicModule(snippetID, eq(className, "None") ? null : "main$" + className, c);
      });
  });
}