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1. Select the objects you want to scale.
   
2. If you want to maintain the aspect ratio (the ratio between X, Y, and Z), select Keep Aspect Ratio from the local menu or click the icon on the Inspector Bar.Image RemovedImage Added  
   You can also maintain the aspect ratio by clicking a drag handle and pressing Shift while resizing.
3. Click one of the drag handles to resize, or enter the scale and size in the Inspector Bar.

You can use Keep Center of Extents when scaling. This option forces all scaling to occur relative to the center of the object. If this option is off all scaling will occur relative to the reference point.

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Note: You can make a copy by clicking the drag handle, pressing Ctrl, and then resizing.

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