Canon EOS M6 Mark II Advanced User's Manual page 62

Basic Operations
<B> Multi-Function Button
< 5 > Control Dial
62
By pressing the <B> button and turning
the <5> dial, you can set the ISO speed.
Turning the control dial is one way to
choose setting items, switch images, and
perform other operations. Additionally, you
can perform most of the operations that
are possible with the < W > < X > < Y > < Z >
keys.
Frequently used functions can also be
assigned ( = 542).