You can share the rights for both folders (including content) and single items. These users have privileges here:
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Select one or more people, and a role to assign.
Sharing is an easy way to allow others access to collaborate with you on your content. To share this item, search for the person's name or email address in the form below, and assign them an appropriate role. The most common use is to give people Manager permissions, which means they have full control of this item and its contents (if any).
Groups are a convenient way to share items to a common set of users. Select one or more groups, and a role to assign.