Click on the brainbox icon (and open if you have already seen a brainbox).

Select the parent folder of your brainbox or folder and click on the three dots to edit your brainbox/folder

You can :
- Change the name and the description
- Define the sharing parameters
- Archive a brainbox/folder

You can choose who can access your brainbox:
- Public: for everyone
- Private: only you
- Shared: you can choose the users you want to share your brainbox with "Read only" means that other users can see it but cannot change it.