The development team has added a new feature that could be useful for a team or a classroom.
The feature is called Environments (You should see a new button on the top bar) and it allows you to limit the access of one or more simulations to a set group of users.
By default, only admins can create Environments but if you are interested, contact the development team so they can give you the permission to create them.
You should also find all this information inside the tutorial once it has been updated.
The development team