Inviting people to folders instead of individual projects

We are a group of about 10 people who are producing a lot of tracks together. Right now for each new project we have to invite all of the others so that they can join. It would greatly improve our workflow to have the possibility to share complete folders with collaborators instead of single projects.

You can already organize projects in folders. So, enabling them to be shared could be a rather small step which would ease up the collab a lot.