FluidTYPO3\Flux\Controller\AbstractFluxController::initializeOverriddenSettings PHP Method

    protected function initializeOverriddenSettings()
    {
        $row = $this->getRecord();
        $extensionKey = $this->provider->getExtensionKey($row);
        $extensionKey = ExtensionNamingUtility::getExtensionKey($extensionKey);
        if (TRUE === isset($this->data['settings']) && TRUE === is_array($this->data['settings'])) {
            // a "settings." array is defined in the flexform configuration - extract it, use as "settings" in template
            // as well as the internal $this->settings array as per expected Extbase behavior.
            $this->settings = RecursiveArrayUtility::merge($this->settings, $this->data['settings']);
        }
        if (TRUE === isset($this->settings['useTypoScript']) && TRUE === (bool) $this->settings['useTypoScript']) {
            // an override shared by all Flux enabled controllers: setting plugin.tx_EXTKEY.settings.useTypoScript = 1
            // will read the "settings" array from that location instead - thus excluding variables from the flexform
            // which are still available as $this->data but no longer available automatically in the template.
            $this->settings = $this->configurationService->getSettingsForExtensionName($extensionKey);
        }
    }