A family of Microsoft on-premises document management and storage systems.
Hi @Franzese Francesca , thank you for posting in the Q&A forum.
Can you provide more information about what section you want to give restrict access to, and what specific do you mean "anyone of the members"? Also, what is the version of SharePoint you are using?
If I have understood you correctly, one common solution is to break the permission inheritance of the contents you want to give restrict access, and then grant permission to specific users or groups (also known as unique permissions).
Reference you might need:
Customize permissions for a SharePoint list or library. / Change the permissions on a subfolder. / Determine permission levels and groups in SharePoint Server.
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