Adding a project or a domain is extremely simple. Once you login you will be prompted to add a domain. A domain is essentially your project. You can add a domain in one of two ways.
And automated popup will appear asking you to add a domain name
Add a domain by clicking New Project
Alternatively, you have the option of adding a new domain by clicking the new project button
This button is shown on the main dashboard as well as the domain/project overview pages as well.