How to write events for user2~4

Thanks so much for FAAST!
How to assign Gestures for different skeleton  in gestures label.
When I key in gestures, there is no option for different users.
Maybe I miss something in sever label?

Please.... Thank you.

Kinect 1 for PC

In the note 1.0 V
Configuration of VRPN streaming for up to 4 users . 
I thank it may be what I NEED.