Sony ILCA-99M2 - Manual (Page 29)

[9] Names of parts/Icons and indicators Basic operations
Using the Fn (Function) button
You can register frequently used functions to the Fn (Function) button and recall them while
shooting. Up to 12 frequently used functions can be registered to the Fn (Function) button.
Select the desired setting value, and press the center to confirm your selection. 3
When using the monitor, press the DISP button repeatedly to display a screen mode
other than [For viewfinder], and then press the Fn (Function) button.
When using the viewfinder, this procedure is not necessary.
1
Select a function to set by pressing the multi-selector up/down/left/right. 2
Select the desired setting by turning the front dial, and press the center of the multi-
selector. 3