Dynamically add FormItem to Form

[RWTH]

is it possible to dynamically add FormItem to a Form? That is, if i click on a button to add some FormItems to an existing DynamicForm?

i have tried to test, but it does not work. because setFields() or setItems() does not work like addMember().

 
public class smd implements EntryPoint {

    public void onModuleLoad() {
      
      VLayout layout = new VLayout();      
      Button button = new Button("Add");            
      final DynamicForm form = new DynamicForm();
      
      button.addClickHandler(new ClickHandler(){

        public void onClick(ClickEvent event) {
          for(int i = 0; i<5; i++){
          TextItem item = new TextItem();
          form.setFields(item); 
          }
        }        
      });
      
      layout.addMember(button);
      layout.addMember(form);     
      layout.draw();
  }
}

Does anyone have an idea about how to handle this?
thanks a lot.

[Isomorphic]

setFields() replaces all existing fields. Two options:

1. if all the fields are known in advance, mark some initially hidden and show them later.

2. if it's completely dynamic, use multiple forms and tie them together with a ValuesManager, visually stacking them with a VStack.