Canon EOS 80D - Manual (Page 264)

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When the Live View image is displayed, if you press the <f>,
<R>, <i>, or <D> button, the setting screen will appear on the
LCD monitor and you can turn the <6> or <5> dial to set the
respective shooting function.
Shooting Function Settings
f / R / i / DSettings
With Live View shooting, you cannot set <B> or <M> for the drive
mode. In addition, the continuous shooting settings set with viewfinder
shooting will not be maintained with Live View shooting.
When you set w (Partial metering) or r (Spot metering), a circle
indicating the metering area will be displayed at the center of the screen.