Hello wen617284661,
The most common way to have multiple people collaborating on a project is to use source control. Source control comes in multiple forms from multiple providers but the three that we support are Perforce, Github, and SVN (Subversion). I would suggest looking into using source control for your project. While this doesn’t allow for simultaneous edits and immediate updates, it does allow for backups for everything in your project and the option of checking out / checking in a particular asset to ensure that only one person is editing it at a time.
You can find more information here: