how to display one X app to more than one X server simultaneously

[Bobber Cheng]

Hi,

I know how to display X one app to a remote X server, but what if I want 
to display one app to two remote X servers simultaneously? e.g. I want 
to diplay oowrite on my machine(192.168.18.2) to two remote X servers 
(192.168.18.8 and 192.168.18.9) and my own X server.