Canon EOS M6 Mark II Advanced User's Manual page 107

Differences Between < d > and < A > Modes
In < A > mode, many functions, such as the AF method and metering mode,
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are set automatically to prevent spoiled shots. The functions you can set
are limited. On the other hand, with < d > mode, only the shutter speed and
aperture are set automatically. You can freely set the AF method, metering
mode, and other functions.
Program Shift
To adjust the combination of shutter speed and aperture value while
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maintaining the same exposure, press the shutter button halfway and turn the
<6> dial. This is called Program shift.
Program shift will be canceled automatically when the metering timer ends
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(exposure setting display turns off).
Program shift cannot be used with flash.
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Program AE Mode (P)
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