Turning iMac DV 400 (G3 slot loader) on via the Apple Pro keyboard?

I was looking at my iMac's Lowendmac profile (located here: http://lowendmac.com/imacs/400.shtml) when I noticed right at the bottom of the page under "Cautions" it mentions:
"You must have the keyboard plugged directly into an iMac USB port to boot with the power key (Eject on the Apple Pro Keyboard); it will not work if the keyboard is attached to a hub."
I never knew this. Before I got the iMac I had an old slow Performa LC630 and it did have a power key on the keyboard so when I went to the iMac I was a bit miffed to find the Pro keyboard didn't have such a feature (not that it mattered a great deal of course, I just always liked power buttons being on the keyboard).
Reading this bit of info though obviously made me excited since in all these years that I've owned the iMac I never knew it could be turned on by pressing eject.
I tried it. Nothing happened. The keyboard is plugged into the main USB panel on the actual iMac too, I tried both slots. No ball. Pressing the eject button doesn't turn the iMac on.
Is this article simply incorrect or is there something I'm missing?

Perhaps the article meant to indicate that those Apple USB keyboards having a power button and the Apple Pro keyboard having the media Eject key must be plugged directly into the computer's USB port and not into a hub, for functionality of those keys. If the Eject key served the same purpose as a Power button, I'd expect to get a prompt asking if I'd like to shut down the computer, every time I ejected a disk. I just connected a Pro keyboard to my iMac DV, and pressing the Eject key didn't power ON the computer.

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Turning iMac DV 400 (G3 slot loader) on via the Apple Pro keyboard?

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