Samsung Galaxy NX500 Camera User Manual (en)

My Camera > 
Shooting modes
 Custom mode
Custom mode lets you create your own shooting modes by customizing 
options and saving them. Save frequently used option settings as a named 
Custom Mode, and then use it as your own shooting mode customized for 
the shooting environment. Use custom mode when you capture photos 
in various environments, you have preferred shooting settings, or you 
frequently use preset options in certain conditions.
Saving custom modes
Rotate the mode dial to P, A, S, M, or T.
Set shooting options.
Press [m], and then select d 
 Manage Custom Mode 
You can also save a custom mode by touching 
 Save on 
the screen.
Verify the shooting options, and then select Save or Save as.
Use the on-screen keyboard to enter a name for the mode.  
(p. 156)
Press [o] to save the mode name.
Capture a representative photo for the mode to save.
Select Save.
You can save up to 40 custom modes.