How can I share a folder?
Share the folder
Navigate in to the folder within Media Library and select the share icon in the upper right corner.
Set folder access
Invite users or groups and set permissions
Under "invite people" type the name of the people or groups you wish to share the folder with. Select your users or groups from the returned options, then set their permission levels to "can view" if you only want them to view the contents or "can create" if you want them to be able to add content to the folder.