How to edit projects created by others
Editing other people's projects requires the help of Enterprise collaboration functions.
There are two ways:
1. The other party is a paid Enterprise Edition (multi-people seats). You must be invited to join the Enterprise, and you can then edit the projects in the Enterprise (Invite Enterprise members/join the Enterprise)
2. You are a paid Enterprise Edition (multi-people seats). You invite the other party to join your Enterprise, and the other party will move personal projects to your Enterprise (Move personal project to Enterprise space)