👋 Hi Dexin,
Max from Thoughtly here.
We don't have a setting to change an existing user's email address at the moment, but you can invite/remove any valid email address as a new user. The invited email address will receive an email notification to join your team, and you have to click the "Join Team" button in that email, and login. Let me know if you have any questions.
Thank you! 🙏