I would not rely on online documentation for specific information, I think that large fragments were simply copied from previous releases to a new folder and remained there.
I was also embarrassed several times by this fact (in my case, this also concerned the configuration of the user interface).
The page you provided in your link is indeed designated as Juno (4.2), but as eugener said, this function is for 3.x (Indigo).
ferng001
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