Use the RESIZE_ALL operation to resize a whole surface.
Click the icon and then click on any control point in one of the orthogonal projection views. All control points on the selected surface will be highlighted in red. Drag the mouse down to increase and up to reduce the size of the surface. Note that the aspect ration is held constant.
The information box (above the 3D view) displays information about the resize amount.
Switch between orthogonal projection views and continue resizing.
Release the mouse when you reach the desired size.
Click the icon again to disable the RESIZE_ALL mode.
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