code: protected Component newButtonBar(String s) {      	
          buttonBar = new AjaxWizardButtonBar(s, this) {
              public void onCancel(AjaxRequestTarget target) {
                  EntityBrowserPanel panel = findParent(EntityBrowserPanel.class);
                  panel.backwardWorkspace(target);
              }
          };
          buttonBar.setFinishSteps(finishSteps);
          return buttonBar;
      }
docs: Job step and Destination step are allowed to finish