Use this dialog box to specify the required net surface volume (negative for cut or positive for fill) when adjusting the level of grading objects.
Specifies the net surface volume for the grading object. When you enter a value and click OK, the grading object is edited so that the required volume is met. The grading object may be adjusted up or down in level to meet this value, for example. The action that is performed is recorded in the Description column of the History table in the expanded part of the Grading Volume Tools dialog box.