X10 and three way hall switching

[Chris Burn <chris@xxxxxxxx>]

Hi all, Long time reader - first time poster.

I'm in the middle of renovating a house and after reading a lot of
advice on ukha I'm wiring for a future install of cbus, so I might need
some advice on that in the future.

But for now I'm looking for a quick fix solution, I've decided on a
Powermax+ alarm system and I want to take advantage of it's X10
features. What I'ld like to be able to do is control the hallway lights
via the alarms keyfobs, but also be able to switch the lights on and off
from standard light switches in the hall and landing. Is there a X10
module that you can use as an intermidiate switch in a 3 way lighting
switch circuit?

Thanks
Chris