etc/adminhtml/system/customer/address.xml
<?xml version="1.0"?>
<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_customer_address" translate="label comment" showInDefault="1" showInWebsite="1" showInStore="1" sortOrder="20">
<label>Address</label>
<field id="street_attribute" showInDefault="1" showInStore="1" showInWebsite="1" sortOrder="10" translate="label" type="text">
<label>Street Attibute</label>
<comment><![CDATA[<b> for example: </b> street_1]]></comment>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<config_path>payment/mundipagg_customer_address/street_attribute</config_path>
</field>
<field id="number_attribute" showInDefault="1" showInStore="1" showInWebsite="1" sortOrder="20" translate="label" type="text">
<label>Number Attribute</label>
<comment><![CDATA[<b> for example: </b> street_2]]></comment>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<config_path>payment/mundipagg_customer_address/number_attribute</config_path>
</field>
<field id="district_attribute" showInDefault="1" showInStore="1"
showInWebsite="1" sortOrder="30" translate="label" type="text">
<label>District Attribute</label>
<comment><![CDATA[<b> for example: </b> street_3]]></comment>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<config_path>payment/mundipagg_customer_address/district_attribute</config_path>
</field>
<field id="complement_attribute" showInDefault="1" showInStore="1"
showInWebsite="1" sortOrder="40" translate="label" type="text">
<label>Complement Attribute</label>
<comment><![CDATA[<b> for example: </b> street_4]]></comment>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<config_path>payment/mundipagg_customer_address/complement_attribute</config_path>
</field>
</group>
</include>