On 25/08/2012 12:11, Paul G wrote:
[...]
I am hoping someone can confirm I need to add a new cable for this, and
suggestions for a switch+(separate) neon indicator faceplate ?

Possible alternative non-electrical solution - if it can be done in a
visually acceptable fashion: drill through the dividing wall and insert
a perspex rod (light pipe), preferably coloured.

--
Andy