How to setup SoapUI for POST request?

Question

API

Good time, dear specialists. There is documentation for the web service, here's a snippet:
Interaction is carried out by sending a POST request to the web service with a single parameter 'requestXML' and receiving response information.
The 'requestXML' parameter is the xml-request.
Request method: POST
Request parameter in which xml should be passed: requestXML
Request type: text/xml
Request encoding: UTF-8
address https://www.domainname.ru/api-test.php
Please tell me how to do it all through soapUI ?