• 4.1. What are Challenges?
• 4.1.1. Can I change the name/description of a challenge?
• 4.1.2. Challenge rewards: how does it work?
• 4.1.3. Is it possible to combine activities for a challenge?
• 4.1.4. How do I create my own Challenge?
• 4.1.5. How can I leave a challenge?
• 4.1.6. How / Where do I change my nickname for a Challenge?
• 4.1.7. Why can't I see a challenge?
• 4.1.8. Why does my user name not appear in the Challenge?
• 4.1.9. Can I participate in several Challenges at the same time?