I wrote:

>  In most transforms you can construct a number that reflects the
>  position within the processing... The idea is to use that number along
>  with the known total and rough time per item to estimate a finish
>  time.

...before I get picked up on that - read it as "attach a number to
particular item of processing" as opposed to "position within the
processing"

I will write the extension when I get time - pull it apart then ;)

-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/