On Wed, 14 Feb 2018 11:29:55 -0000, "Andrew Mawson"
wrote:

"The Natural Philosopher" wrote in message
news
Yeah. As usual what the OP really wants only emerges after a load of wasted
suggestions

I really do think the requirement was clearly stated in the original post.
Perhaps you missed that one ?

I think several things come into play he

A familiarity with the overall setup.

The ability to read English (yes, you did state all that was needed in
your OP).

Not being a left brainer (who can't read between the lines and try to
push their weakness on others) and assume that all the key facts had
not already been stated or that the poster didn't already have a clue
about what they were doing. ;-)

Cheers, T i m