code: void zApplyDisplayToggleTimeMenuButton() {
          if (parent == null) {
              return;
          }
          parent.getComponentToggleTimeMenuButton().setEnabled(displayToggleTimeMenuButton);
          parent.getComponentToggleTimeMenuButton().setVisible(displayToggleTimeMenuButton);
      }
docs: zApplyDisplayToggleTimeMenuButton, This applies the specified setting to the time picker.