public function getEditForm($id = null, $fields = null) {
    $form = parent::getEditForm($id, $fields);
    $form_fields = $form->Fields();

    $gridFieldName = $this->sanitiseClassName($this->modelClass);
    $gridField = $form_fields->fieldByName($gridFieldName);

    $gridField->getConfig()->removeComponentsByType($gridField->getConfig()->getComponentByType('GridFieldPrintButton'));
    $gridField->getConfig()->removeComponentsByType($gridField->getConfig()->getComponentByType('GridFieldExportButton'));

    $form_fields->addFieldToTab('Root', HeaderField::create('Header', 'Fixtures'), $gridFieldName);

    return $form;
}