Bertie the Bunyip writes:
Actually, the examiner isn't some automaton who sits there checking
boxes. (well there're probably one or two who do)
If he gets into an airplane with a candidate who can't operate the ****
on board and he imagines this guy putting around like a cow on crack,
long fingering the day he might learn to use the equipment installed,
he's going to fail him on general princple.
He won't say that, of course....

I don't know if my interpretation of the legaleese is correct, but
when I did my test my instructor told me "if it is on the panel, the
examiner will expect you to know how to use it, or at a bare minimum
how to disable it."

So he taught me how to use the GPS that was installed in my club's
Tomahawks. My examiner had no issues at all when I hit the "direct to
nearest" buttons on the GPS when he asked me what I would do if I was
to divert to the closest airport.

Chris