New

The same dialog box can be reached via Change…, the title then is Change hard ground region instead of New hard ground region, the functionality is otherwise alike.

Find it here:

MOUS_ICO Menu: Noise > Hard ground regions > New

or

MOUS_ICO Menu: Noise > Hard ground regions > Dialog box… > New region

or

nco: Select a hard ground region

MOUS_ICO Popup menu: New

In this dialog box, you define/change a hard ground region. A hard ground region must be limited by a polygon.

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