Follow these steps to manually override the security of a file, folder, or custom object:
You can also access the Details dialog by selecting Details from the File menu.
Notice the Security Mode field indicates that there is either role-based security or object-based security on the selected Vault object. If the value is object-based security, then an ACL has been defined for selected Vault object.
Notice the Security Mode field now says System or overriden security. This indicates that there is an Override ACL configured on the Vault object.