<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Sales\Model\AdminOrder\Create">
        <plugin name="order-create-after-model-plugin" type="Slimcd\Payment\Model\Adminhtml\Order\Index" sortOrder="10"/>
    </type> 
</config>