EverFocus EHN3160 Plus User Manual page 58

EHN Plus Series
Select All: Click to turn the whole screen into a mask area.
Clear All: Click to delete all configured mask blocks.
Eraser: Click to turn the mouse cursor into an eraser to delete any block you click on.
Area: Shows the color and number of the block.
Enable: Check this box to enable the related mask block.
Click Apply to apply the changes, or click Reset to reset without saving the changes.
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