magepsycho Discount Limiter MagePsycho_DiscountLimit::config MagePsycho\DiscountLimit\Block\Adminhtml\System\Config\Form\Fieldset\Support General Settings Version MagePsycho\DiscountLimit\Block\Adminhtml\System\Config\Form\Field\Version Enabled Magento\Config\Model\Config\Source\Yesno Debug Mode Magento\Config\Model\Config\Source\Yesno