On Mon, 11 May 2009 08:21:02 +0100, Tim S wrote:

4 wire control flex or one triple+E: Live, Switched Live, Neutral (some
battery powered electronic programmers don't need this) and Earth? This
of course assums you no longer need a remote button because the
programmer is now in the zone.

The OP's spec is for control in the zone and at a central point...

--
Cheers
Dave.