I understand that some some or all of the 1D series have the ability to not only move the autofocus points but that these peripheral points then can also be used for metering. Thus moving the metering off center to peripherally selected areas.

Question: If this is correct is this a function that has to be set up in a menu or does it automatically follow the AF selection?

And how does this function with the many AF point/group selection options?

Also is there the ability to use the metering options (Evaluative/partial/center weighted/spot) on these points?

Thanks