Open Source Document Management System | OpenKM

Hi,
OpenKM 5.1.0.0
How can I define rules for folders? i.e I want some users access to a folder or I want to send an Email to specified users ...
Thanks in advance

About rights, you can use security button. About sending mail you should be more specific about it.
When you talk about rules what do you got in mind ? explain as a end user case