Need an additional Notification option for approving PM reports

There are moderator permissions for "Can close and delete reports" under the Posts tab (m_report) and for "Can close and delete reports of private messages" under the Misc tab (m_pm_report).

In the UCP, under "Edit Notifications preferences" there is only an entry for "Someone reports a post ", and nothing for "Someone reports a PM".

Since a given user can have either one or both of these permissions (or none, in which case I assume the option does not display), there should be a separate Notification option for each permission. Otherwise it leads to confusion.

As it is now, the Notification appears to apply to both, or either, option, depending on the user's permissions.

See https://www.phpbb.com/community/viewtopic.php?p=15486041#p15486041