Data about the selected hard ground regions are deleted.

The dialog box Delete hard ground region appears, see Delete.

Find it here:

• MOUS_ICO Menu: Noise > Hard ground regions > Delete
• MOUS_ICO Menu: Noise > Hard ground regions > Dialog box…
• MOUS_ICO Select one or several hard ground regions in the list
• MOUS_ICO Dialog box: Delete
• nco: Select a hard ground region
• MOUS_ICO Popup menu: Delete