KWF_FORM_CONTAINER_COLUMNS
Using Kwf_Form_Container_Columns you can easily create multiple columns within a form.
$columns = $this->_fields->add(new Kwf_Form_Container_Columns('Example'));
$column1 = $columns->add();
$column1->add(new Kwf_Form_Field_TextField('foo_value', trl('Foo')));
$column2 = $columns->add();
$column2->add(new Kwf_Form_Field_TextField('bar_value', trl('Bar')));