This is a method for transforming the selected data region to a constant. Select data you want to apply this method in Analysis Window and click the icon of Setting the Selected Regions to a Constant in Analysis Tool Bar. This will display a dialogue box for selection of data and a dialogue box for selection of channel. You can input the constant value as you need in Constant Value of the dialogue box for selection of data. Further, you can set data region to which the constant value is applied. After completion of this setting, the dialogue box for selection of channel will be displayed to help you select channels to which the settings are applied.