The syslog-ng 3.0 Administrator Guide

This driver writes messages to the terminal of a logged-in user.

The usertty() driver has a single required argument, specifying a username who should receive a copy of matching messages. Use the asterisk * to specify every user currently logged in to the system.

Declaration: 
    usertty(username);

The usertty() does not have any further options nor does it support templates.

	Example 8.25. Using the usertty() driver
	destination d_usertty { usertty("root"); };