Sony ILCA-77M2 - Manual (Page 114)

Program Shift cannot be registered.
For some functions, the position of the dial and the setting actually used for shooting may not match.
If this happens, shoot images by referring to the information displayed on the monitor.
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Function Menu Set.
You can assign the functions to be called up when you press the Fn (Function) button.
1. MENU
→ (Custom Settings) → [Function Menu Set.] → set a function to the desired location.
The functions that can be assigned are displayed on the setup item selection screen.
[134] How to Use Using shooting functions Customizing the shooting functions for
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Custom Key Settings
Assigning functions to the various keys allows you to speed up operations by pressing the appropriate
key when the shooting information screen is displayed.
1. MENU
→
(Custom Settings
) → [Custom Key Settings] → set a function to the desired key.
Note
Some functions cannot be assigned to certain keys.
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Function of the focus hold button
Allows you to assign a function to the focus hold button on the lens.
1. MENU
→
(Custom Settings
) → [Custom Key Settings] → [Focus Hold Button] → desired
setting.