You can connect to Tenable.cs from the Tenable.io page.
To connect to Tenable.cs:
Log in to Tenable.io.
In the left navigation plane, click Cloud Security.
The Tenable.cs page opens. By default, a dashboard appears that displays various statistics.
Click the Projects & Connections tab to view the statistics related to projects, repositories, cloud accounts, pipelines, users, integrations, and policies.