Samsung GR LENS A12 - Manual (Page 30)

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[Delete My Settings] (Key Custom Settings Tab Menu)
By selecting [Delete My Settings] on the Key Custom Settings tab, you can
cancel the settings set in [Reg. My Settings] for [My Settings Box] and for
[MY1], [MY2], and [MY3] on the mode dial.
[Restore Defaults] (Key Custom Settings Tab Menu)
If [Restore Defaults] is selected on the Key Custom Settings tab, the key
custom settings will be reset.
Note --------------------------------------------------------------------------------------
Settings set in [Reg. My Settings] will not be reset.