FluidTYPO3\Flux\Form\AbstractFormField::modify PHP Method

    public function modify(array $structure)
    {
        if (TRUE === isset($structure['wizards'])) {
            foreach ((array) $structure['wizards'] as $index => $wizardData) {
                $wizardName = TRUE === isset($wizardData['name']) ? $wizardData['name'] : $index;
                // check if field already exists - if it does, modify it. If it does not, create it.
                if (TRUE === $this->has($wizardName)) {
                    $field = $this->get($wizardName);
                } else {
                    $wizardType = TRUE === isset($wizardData['type']) ? $wizardData['type'] : 'None';
                    $field = $this->createWizard($wizardType, $wizardName);
                }
                $field->modify($wizardData);
            }
        }
        return parent::modify($structure);
    }