To make the Y value under the active cursor void:
1.Set the cursor to the point on the curve whose Y value you want to make void.
2.Open the selection field Cursor[Edit] > Edit Value and select the command Void Value.
To make the Y values of all data between the cursors void:
1.Set both cursors on the left and right edge of the area whose Y values you want to make void.
2.Open the selection field Cursor[Edit] > Edit Range and select the Void Rangecommand.
Note You can only manipulate data directly if the curve is based on a data set and not on a formula. If the curve is based on a formula, you first have to convert it into a data set.
The manipulation takes place directly in the data set and cannot be undone.