Canon PIXMA MG4200 Series On-Screen Manual page 654

Enter Setting Name and click Add; the name appears in Tone Curve Settings List or Threshold
Settings List.
Click Save to save.
You can load and apply the saved tone curve/threshold settings to a preview image. To load the settings,
select the saved item from the pop-up menu.
To delete an item, select it in Tone Curve Settings List or Threshold Settings List and click Delete.
Click Save to save the settings displayed in Tone Curve Settings List or Threshold Settings List.
Note
Save up to 20 items.
Defaults
Reset all adjustments (saturation/color balance, brightness/contrast, histogram, and tone curve).
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