You'll often find it useful to edit an entire group of controls. You can drag, cut, copy, paste, align, and size a group of controls.
First, enlarge the OK button by selecting it and then dragging one of its corner handles with the mouse. Now select all three buttons by dragging open a rectangle with the mouse. To drag a rectangle open, place the mouse pointer beside a control, then press and hold the left mouse button, and drag the mouse. In this way you can select all the controls that are within or partially within the rectangle boundaries.
Another way to select several controls at a time is to hold down the SHIFT key and click on each control. This is useful for making a group out of a number of scattered controls. You can also toggle the selection state of each control without affecting other controls by clicking on that control while holding down the SHIFT key.