Working with pools and swimlanes is an excellent way to display processes that involve more than one actor/party. This video tells you everything you need to know about swimlanes in draw.io.
Get your 30-day trial – draw.io is available on the Atlassian Marketplace (https://drawio.link/marketplace)
Or learn more about diagramming with draw.io at https://drawio-app.com/learning. You can also take a look at our blog (https://drawio-app.com/blog) to always stay up-to-date on new draw.io features in Confluence.