Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 135)

Fv: Flexible-Priority AE
In this mode, you can set shutter speed, aperture value, and ISO speed manually or
automatically and combine these settings with your preferred exposure compensation.
Shooting in <
Fv > mode, with control over each of these parameters, is equivalent to
shooting in all four modes of < P >, < Tv >, < Av >, and < M > at once.
* < Fv > stands for Flexible value.
1.
Set the Mode dial to < >.
2.
Set the shutter speed, aperture value, and ISO speed.
Turn the < > dial to select an item to set. [ ] appears to the left
of the selected item.
Turn the < > dial to set the option.
To reset the setting to [ AUTO ], press the < > button.
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