Sony a9 II Help Manual page 182

Assigning a key to recall "My Dial"
Assign a custom key to recall the registered "My Dial" settings.
 MENU 
Custom Key]  Select the key that you want to use to
[
recall "My Dial."
 Select the number of the "My Dial" setting that you want to
recall or the pattern for switching "My Dial."
My Dial 1 during Hold / My Dial 2 during Hold
/ My Dial 3 during Hold: While you hold down the key, the
functions that you registered in [My Dial Settings] are assigned to
the dial/wheel.
My Dial 123: Each time you press the key, the function changes
in the following sequence: "Normal function  Function of My
Dial 1  Function of My Dial 2  Function of My Dial 3  Normal
function."
Toggle My Dial 1 / Toggle My Dial 2 / Toggle My Dial 3: The function
registered using [My Dial Settings] is maintained even if you do
not hold down the key. Press the key again to return to the normal
function.
Shooting while switching "My Dial"
During shooting, you can recall "My Dial" using the custom key, and shoot
as you change the shooting setting by turning the front dial, the rear dial,
and the control wheel.
Note
• "My Dial" settings in which every dial/wheel is set to [Not set] are not recalled
when you press the custom key. They are also skipped in [My Dial 123].
• Even if a dial/wheel has been locked using the [Lock Operation Parts]
function, it will be unlocked temporarily when "My Dial" is recalled.
GB
182
(Camera Settings 2)  [
Custom Key] or