String[] keys = getColsChoiceKeys(ureq);
String[] selectedKeys = getFirstN(keys, 4);
colsChoiceController = new ChoiceController(ureq, getWindowControl(), keys, getTranslatedKeys(propertyHandlerTranslator,keys), selectedKeys, singleSelection, layoutVertical, "next");
this.listenTo(colsChoiceController);
wizardController = new WizardController(ureq, wControl, wizardSteps);
this.listenTo(wizardController);
wizardController.setWizardTitle(translate("memberlistwizard.title"));
if (GROUPS_MEMBERS.equals(wizardType)) {
wizardController.setNextWizardStep(translate("memberlistwizard.groupchoice"), groupsOrAreaChoice);
} else if (AREAS_MEMBERS.equals(wizardType)) {