etc/adminhtml/system/transaction/creditcard/antifraud.xml
<?xml version="1.0"?>
<!--
/**
* Copyright © 2017 Magento. All rights reserved.
* See COPYING.txt for license details.
*/
-->
<include xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_include.xsd">
<group id="mundipagg_mundipagg_transaction_creditcard_antifraud" translate="label comment" showInDefault="1" showInWebsite="1" showInStore="1" sortOrder="200">
<label>Anti fraud</label>
<field id="antifraud_active" showInDefault="1" showInStore="1" showInWebsite="1" sortOrder="20" translate="label" type="select">
<label>Active</label>
<comment />
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<config_path>payment/mundipagg_creditcard/antifraud_active</config_path>
</field>
<field id="antifraud_min_amount" showInDefault="1" showInStore="1" showInWebsite="1" sortOrder="20" translate="label" type="text">
<backend_model>MundiPagg\MundiPagg\Model\Validation\GenericValidation</backend_model>
<label>Min Amount</label>
<comment />
<config_path>payment/mundipagg_creditcard/antifraud_min_amount</config_path>
<depends>
<field id="antifraud_active">1</field>
</depends>
</field>
</group>
</include>