Is it possible to have multiple people working on the same scratch project?

There isn't a way for people to work on the same project at once, but you can each share your portion and add it together.

Currently, collaborative projects (projects with 2 or more users working at the same time) is denied due to platform limitations. You can work together locally by sharing a computer and taking turns editing the project, however there is no way to work with users across the globe, unfortunately.