private function set_default_layout()
{
$this->json['layout'] = 'body-layout';
$this->register_layout('body-layout', array('columnStart' => $this->get_col_start(), 'columnSpan' => $this->get_setting('body_column_span'), 'margin' => array('top' => 12, 'bottom' => 12)));
// Also pre-register the layout that will be used later for the last body component
$this->register_layout('body-layout-last', array('columnStart' => $this->get_col_start(), 'columnSpan' => $this->get_setting('body_column_span'), 'margin' => array('top' => 12, 'bottom' => 30)));
}