This is a short instruction how to make simple project:
1. Right click on navigation tree and choose "New/Project":

2. After project is created, you may start creating its structure: milestones, requirements etc:
3. Now you can add team members: right click on project file, and choose "Team Members / Add" in popup menu. Then choose users you want to include to team members, specify group (users will act according to this group's permissions inside the project), and secret level (optional):
Your project is ready!