I'm using the QuickForm2 funcionality in _form.phtml to customize my forms, however, I can't customize Checkbox/Radio/Checkable inputs. I thought that this would work: PHP: $renderer->setTemplateForClass('HTML_QuickForm2_Element_InputCheckbox', $template); as stated on QuickForm2 documentation, but it's not. Did you changed the way the script works, or am I doing this entirely wrong?.