Use projects to create all content for your events. A project is like a template which can have several events (url's) that want to use the same set-up but for different occasions with different participants.
In this resource:
Go to Projects tab and click on "create new". Make sure you create the project in the correct group.
Fill in all the fields in the popup and click on create.
Open the project by clicking on the name. Voila, your new project is now ready to start building. One event is always added to a project by default. To add more events to a project, learn more about events here.